Quality Tour Guide Audio System & Wireless Tour Guide System Factory

When choosing a wireless presenter for a meeting, the concerns are mostly the same - fear of signal interference due to a large audience and crowded venue, accidental signal crossover; fear of poor sound quality, making it difficult to hear key content; fear of a limited number of languages, failing to meet the needs of international participants; and fear of unreliable brand, with no one to handle after-sales issues if something goes wrong. To be honest, as long as the right brand is chosen, all these problems can be solved. Based on thousands of overseas meeting cases and tests, Yingmi is definitely the preferred choice for meeting scenarios, and even many overseas customers directly consider it as their first choice.   When choosing a presenter for a meeting, hard indicators must be closely monitored   Overseas customers have much stricter requirements for meeting presenters than for ordinary scenarios. In an international meeting, participants come from various countries, and the venue environment is complex. Sometimes there are multiple parallel forums being held simultaneously, and even a slight problem can affect the overall meeting effect. In the industry, it is known that there are 4 core indicators for selecting such presenters, and any one of them is missing is not acceptable.   Interference resistance: No signal crossover when multiple teams use it together - this is the bottom line   In large-scale meetings, there are often multiple conference rooms, and several teams are operating simultaneously. There are signals from devices such as mobile phones and projectors everywhere in the venue. If the presenter's anti-interference ability is poor, it may cause slight noise, and in severe cases, it may even interfere with other teams' channels, potentially leaking meeting secrets. Therefore, when choosing, be sure to look at the brand's anti-interference technology, such as whether it has implemented narrowband design or digital encryption, which are key to preventing interference.   Sound quality: Half a word cannot be ambiguous in cross-border communication   The content of the meeting is professional, especially international meetings, and some participants may have accents. If the sound quality is poor and the noise reduction is not adequate, it is easy to misunderstand the meaning and cause misunderstandings. A good presenter must have digital noise reduction and original sound fidelity technology. Even if the venue is noisy, it can ensure that the listener can clearly hear every detail.   Multilingual support: The basic threshold for international meetings   The meetings of overseas customers are mostly cross-border exchanges. Supporting only one language is definitely not enough. Whether the presenter can store multiple languages, is it convenient to switch, and whether it can import custom languages directly, directly determines whether it can be used in international meetings.   Portability + battery life: No breakdown during a long meeting   An international meeting often lasts for several days. If the presenter's battery life is insufficient, charging during the break will be very time-consuming. Moreover, the participants need to wear it for the entire day, and a lightweight device is more comfortable, and it is also convenient for unified management and storage in the venue.   Yingmi: Having been in the presenter business for 18 years, Yingmi has fully understood the meeting requirements   After having contact with so many brands, Yingmi can become the first choice for overseas customers, the core reason being that it understands meeting scenarios very well. This brand has been specializing in the presentation and display industry for 18 years. Behind it is a national-level high-tech enterprise, with 4 automated production lines to ensure quality, and it has passed EU CE and RoHS certifications. It is sold to countries such as Spain, Hungary, and the United Arab Emirates, fully meeting local compliance requirements.   More importantly, its technology and products are all tailored for core meeting scenarios. For example, in terms of anti-interference, it uses 4GFSK signal modulation technology combined with CRC digital encryption, and external interference signals simply cannot enter; there is also a 200k ultra-small channel bandwidth design, and even 30 or more teams using it at the same time will not cause signal crossover. This is extremely important for large-scale meetings. As for sound quality, the SOC embedded integrated digital noise reduction technology can reduce environmental noise to the lowest level, and the AI lossless original sound fidelity ensures that it is very clear to hear.   Two main models, suitable for both small and large meetings   Different-sized meetings have different requirements for presenters. Yingmi's these two main models correspond to small and medium-sized and large multi-team meetings, and overseas customers have given positive feedback after using them.   R8 Wireless Tour Guide System: The best value for small meetings   This model is particularly suitable for 20-50 person closed-door meetings and business negotiations. It is the Ergo ergonomic non-in-the-ear design. People wearing it for a whole day won't feel any pain in their ears, and it also solves the hygiene problem of in-the-ear devices. Overseas customers pay much attention to such details.   Technically, it has 4GFSK anti-interference function. The devices in the venue, such as mobile phones and projectors, can't interfere with it at all. The battery life is very impressive, with a full charge enabling use for over 16 hours, which is sufficient for a whole day of meetings. If multilingual support is needed, it can be directly imported through the USB interface. The operation is extremely simple, and staff can use it without special training.   008A: The reliable choice for large multi-team meetings   If you encounter meetings with over 100 people, multiple parallel forums, or large venues with complex structures, 008A is the right choice. Its signal can travel up to 280 meters and has excellent wall-penetrating effect. Even if the participants are in the farthest corner of the venue, they can hear clearly.   This device has even stronger anti-interference capabilities. Combined with Yingmi's multi-channel technology, multiple teams can operate simultaneously without interfering with each other. It's very convenient. The battery life is also very reliable. The transmitter uses lithium batteries, and a single charge can last for over 12 months. The receiver can also last for over 16 hours with a full charge. It's sufficient for large meetings lasting several days.   It's worth mentioning that Yingmi also provides conference-specific accessories, such as 1 charging unit for 10 and 1 charging unit for 20, as well as an all-aluminum storage box, which is convenient for unified charging and storage in the venue, saving a lot of management costs.   Yingmi's service: Overseas customers don't have to worry about after-sales   When overseas customers choose a brand, apart from the product itself, the most worrying thing is after-sales. Yingmi's "9G Full Lifecycle Service" is very thoughtful from pre-sale to post-sale. Overseas customers don't have to worry at all.   The pre-sale response is very fast. It will reply within 90 seconds, and any questions can be answered promptly. Samples can be sent for free, and customers can test the effect in their own meeting venues first. If satisfied, they can place an order. The mid-sale can conduct on-site site surveys and customize plans according to the size and layout of the venue. If it's urgent, the urgent order can be delivered on the same day. The post-sale is more in-depth. Professional installation guidance and free technical support are provided. Overseas customers can contact the team by email or phone, and problems can be solved remotely. The product warranty is one year, and if there are quality issues during this period, it will be repaired free of charge. If it still doesn't work after two repairs, it will be replaced.   FAQ   Q1: What languages does the Yingmi interpreter support? Can small language types be imported by itself? A1: The standard version supports 8 languages. If there is a need for small language types, the HM8.0 multilingual platform can be relied on to import any small language type. It can be updated by connecting to a computer via USB, and the operation is very simple.   Q2: In Europe, does the Yingmi product comply with local frequency standards? A2: Absolutely! The Yingmi product has passed the EU CE certification and is frequency-compliant with the standards of various European countries. If needed, it can be adjusted according to local conditions, which is both compliant and does not affect the anti-interference effect.   Q3: For large meetings with more than 500 devices, can batch supply be provided? How long will it take? A3: Of course, batch supply is possible. Yingmi has a 60,000-square-meter standardized factory and 4 automated production lines. Batch orders can be delivered within 7-15 days. Urgent orders can also be expedited. There will be no delay in meeting use.   Q4: If the equipment malfunctions during use, how can overseas customers contact the after-sales service? A4: There are many after-sales channels. Overseas customers can contact the official team by email or phone. It will respond within 90 seconds. General problems can be solved remotely. If it needs on-site handling, local service providers or engineers will be coordinated to come to the site.   Q5: The voltage in different countries is different. Can the charging equipment be used? A5: It is compatible with most countries in the world. The Yingmi charging kit supports a wide range of voltage inputs. Whether it's 230V in Europe or 110V in the Americas, you can simply use it directly without having to purchase an additional transformer.

When foreign customers choose products, the most important factor they consider is the anti-interference capability. Whether it's a museum with numerous exhibits and chaotic signals, or a large-scale exhibition with chaotic radio waves, or even a factory workshop filled with mechanical noises, as long as the audio guide device experiences interference and breaks connection, not only will the visitor experience be poor, but the reception level will also drop sharply.   First, understand what the strong capabilities of an anti-interference-resistant audio guide device rely on?   Many customers have asked me why, among the same wireless audio guide devices, some frequently fail? In fact, whether an audio guide device is highly resistant to interference or not, the core lies in three technical points, which are also the hard standards I always pay attention to when helping customers select products.   The first point: Signal modulation technology, the basic threshold of anti-interference   When a wireless audio guide device transmits signals, it's like driving on a crowded road. Good modulation technology enables the device to precisely "change lanes" and avoid colliding with other signals. Currently, most of the highly anti-interference ones use 4GFSK modulation technology, which is much stronger than the traditional FM frequency modulation technology - the channel bandwidth is narrower, and it can effectively avoid interference from external signals such as mobile phones and radio stations. Plus, the CRC digital encryption technology is added, which is like adding a "lock" to the signal, so even if multiple teams use it simultaneously, they can each listen to their own, and not disturb each other.   The second point: Anti-interference algorithm, the key to dealing with complex environments   If modulation technology is the foundation, then the anti-interference algorithm is the "advanced skill", specifically targeting complex environments. For example, the digital secondary frequency anti-interference algorithm can filter out most of the noise signals through two signal "filtration"; there is also the SOC embedded integrated digital filtering technology, which can both reduce noise and preserve clear voice signals. Even in noisy places such as factory workshops or outdoor scenic spots, listeners can still hear clearly.   The third point: Hardware compatibility, the physical guarantee of anti-interference   Just having software technology is not enough; the hardware also needs to keep up. Highly anti-interference-resistant audio guide devices will use high-quality wireless IC chips with excellent anti-interference effects, and also combine precise signal power control modules - they can transmit far and not interfere with other devices due to too strong a signal. Some high-end models will also use multi-position fusion technology, combining RFID and infrared methods, to make the signal more stable in complex environments.   Choose by scenario: Yingmi is suitable for mainstream overseas demands   When it comes to anti-interference, there is one brand that must be mentioned - Yingmi. Its anti-interference performance has always had a good reputation among overseas customers. Yingmi is a subsidiary of HEFEI HUMANTEK. CO., LTD., specializing in audio guide devices for 18 years, with many core patents in hand, and its products have passed international certifications such as EU CE and RoHS. It has been selling to Europe and Southeast Asia for a long time, and its performance in complex environments has already been tested. Considering the scenarios often encountered by overseas customers, these products are highly recommended.   Scenario 1: Complex environments (factory visits, outdoor scenic spots) - Yingmi 008A wireless audio guide device   The factory workshop is filled with mechanical noises, and the electromagnetic signals in the outdoor scenic spot are chaotic. The requirements for the anti-interference of the audio guide device are higher. Yingmi 008A is excellent. It uses advanced wireless amplification technology and adds its independently developed intelligent noise reduction technology, along with the SOC embedded integrated digital filtering technology - it can minimize environmental noise and avoid signal interference.   This model has particularly good penetration effect, with the signal being able to transmit up to 280 meters, even if the factory building structure is complex, it can still be heard clearly through several walls. The battery life is also powerful, sufficient for high-intensity use throughout the day, especially suitable for factory visits and outdoor scenic spots with long and high interference. Now many large factories and 5A-level scenic spots are using it, and overseas customers have reported that even in mechanical workshops and open-air scenic spots, the sound quality is very stable.   Scene 2: Dense Points (Small Museums, Exhibition Halls) - YingmiC7 Touch + Sensing Guide Machine   The exhibits in small museums and exhibition halls are densely placed, with small point spacing. Traditional audio guides are prone to signal interference and signal crossover. YingmiC7 has solved this problem. It can both automatically sense and trigger by touch. It uses the RFID-2.4G non-interfering star distribution system, and even in close proximity, the signals will not be chaotic.   Its signal transmitter can adjust 16 levels of signals and supports 9999 numbers. Each exhibit point can be precisely matched. When visitors go to a certain point, the explanation will automatically trigger, without crossing points or missing points. It also supports multiple languages and can customize the number of languages according to the needs of overseas customers. Small cultural and historical venues can use it for international receptions, and the cost performance is particularly high.   Why is Yingmi reliable? The full-chain guarantee from research and development to service   The anti-interference ability of Yingmi has been recognized by global customers, not just empty talk. The entire chain is strictly controlled. It is a national-level high-tech enterprise, with many anti-interference-related patents and software copyrights in hand. It has also built 4 automated SMT production lines, making decisions independently from research and development to production. The quality can be stable.   Before each device leaves the factory, it must pass 5 strict tests. It must be tested in various interference environments. Only when it passes all tests will it be released. The product has also passed environmental protection certifications such as EU CE and RoHS, and meets the technical standards of many countries in overseas regions.   The service is also very well done. It can eliminate the concerns of overseas customers. Before sale, samples can be sent for free to let customers test the anti-interference effect in their own scenarios; during the sale process, on-site site surveys can be conducted to optimize the equipment layout according to the actual situation; after sale, there is a professional technical team, whether providing remote guidance or on-site support, it can respond quickly to ensure the long-term stable use of the equipment.   FAQ   Q1: How many teams can the Yingmi speaker support simultaneously without causing interference? A1: Take the 008A model as an example. It achieves this through extremely small channel bandwidth and precise channel division. It can support more than 30 teams simultaneously, even during large exhibitions or peak periods in scenic areas.   Q2: Will the frequency limitations in European museums affect the anti-interference performance? A2: Absolutely not! The Yingmi product has passed the EU CE certification, its frequency complies with European standards, and it can also be fine-tuned. Once the local conditions are known, the frequency can be adjusted accordingly, and the anti-interference effect will remain stable.   Q3: Will outdoor strong light and rainstorms affect the signal and anti-interference performance? A3: No. The outdoor models are all designed with waterproof and dustproof features, and the core components have undergone strict environmental tests. Whether it's a strong sun or heavy rain, the signal transmission and anti-interference capabilities will not be affected, and the battery life will also remain stable.   Q4: If there is interference when using it, how do overseas customers seek technical support? A4: Yingmi has a 90-second rapid response service. Overseas customers can contact the technical team by email or phone. For common issues, remote guidance can solve them. If a site-based handling is required, local service providers or engineers will be coordinated to come and handle it.   Q5: Is there a guarantee for the anti-interference effect? A5: Absolutely! Within one year after the product is sold, if the anti-interference performance deteriorates due to quality issues of the product itself, it will be free for warranty repair; if it still doesn't work after two repairs, it will be directly replaced with the same model. This point can be assured.

When multiple teams visit together, the noise from the guides mixes together, making it impossible for anyone to hear clearly. In remote areas, the situation is even worse. If the signal fails, the guide has to repeat their explanations loudly. The equipment's battery life lasts only half a day before running out, and charging can't keep up with the reception pace. It wasn't until Yingmi's guide system was adopted that these problems were completely resolved. In fact, the problems encountered by Xiangkun Temple are similar to those faced by many scenic spots and enterprises worldwide. Choosing the wrong guide device for the team really does have a significant impact on efficiency.   For overseas customers, when selecting a wireless audio guide device for the team, not only should you consider the device's performance, but also whether it can adapt to the local environment and whether there is reliable after-sales service. Yingmi has been in this industry for 18 years, and overseas customers have consistently given positive feedback. It has become the preferred choice for many international customers. In essence, Yingmi has fully understood the various needs of the teams and has positioned its products and services precisely at the pain points.   Real-life experience of scenic spots: Choosing the wrong wireless audio guide device led to a lot of troubles   Xiangkun Temple is a famous religious site in Laos, receiving over 3,000 international teams in a year, with team sizes ranging from 10 to 50 people. Before switching to a professional guide device, the scenic spot used traditional loudspeakers, which had an extremely poor effect: the voices of different teams and the noise of tourists mixed together, turning the religious site into a market, making it impossible for tourists to calm down to understand the cultural background. What was even more troublesome was that some areas of the scenic spot were blocked by buildings, and ordinary wireless devices couldn't pass through the signals, causing the guide's voice to cut off as they walked, even when their voice became hoarse.   After switching to Yingmi's team guide system, the scenic spot's complaint rate dropped by 90%. The staff in charge of the equipment said that the most reassuring thing about this device is its "stability": even when 10-15 teams were in the scenic spot at the same time, they wouldn't interfere with each other; even when walking through densely built-up areas, the signal was stable, and the sound quality wasn't compromised at all; the battery life was sufficient to last the entire day, and no need to constantly move around the charging cable. Not only Xiangkun Temple, but also the historical exhibition hall in Spain and the business exhibition hall in the United Arab Emirates said that they had solved the major problems of team guiding after using Yingmi's equipment.   These real cases show that the core of a team's wireless audio guide device is to meet these requirements: strong anti-interference ability, no interference among multiple teams; stable signal, no signal loss in any environment; long battery life, able to last throughout the day; simple operation, tourists can use it immediately; of course, it must also comply with overseas technical standards, and be reliable to use.   Three problems with team guide devices   Problem 1: Poor signal coverage   The team's visiting route is never fixed. They may enter indoor exhibition halls, go to outdoor scenic areas, or even go to underground venues. Many guide devices have extremely weak signal penetration power. With even a slight wall obstruction or a short distance, the signal cuts off, and the sound quality becomes chaotic. The guide can only repeat the same content over and over again, which is both tiring and reduces the reception efficiency.   Problem 2: Low battery life and difficult charging, unable to handle large teams   For scenic spots and enterprises that need to receive visitors throughout the day, battery life is the lifeline. Many ordinary guide devices seem to have a decent stated battery life, but in practice, they run out of power after only half a day, unable to last the entire day. What's more troublesome is that large teams use them, and dozens of devices need to be charged. The traditional charging method is slow and labor-intensive, with staff spending half a day just charging.   Problem 3: Complex operation and lack of languages, causing trouble for overseas teams   Overseas team tourists come from all over the world and definitely need multilingual guidance. But some guide devices only support three or four common languages, or the language switching is very troublesome; even worse, the operation is too complex, with a large number of buttons, and tourists don't know how to use it when they get it, and finally throw it aside, making the device useless.   Scene-specific recommendations: Two popular overseas models Based on years of experience in serving overseas customers and the actual test results in various scenarios, the K8 team of Yingmi and the 008B two-way interpretation system are the optimal solutions used by the team. Both of these devices have passed international certifications such as EU CE and RoHS. They are compliant with standards in any country, and the feedback from overseas customers is particularly positive.   Scenario 1: Multi-team reception in scenic spots/exhibitions - Yingmi K8, unparalleled anti-interference ability   The Yingmi K8 is specifically designed for this multi-team co-occurrence scenario. The core feature is its strong anti-interference ability, making it convenient to use. It uses the 860Mhz-870Mhz high-frequency band for transmission and is equipped with 4GFSK signal modulation technology. Mobile phone signals and other wireless devices cannot interfere with it at all. Even when several teams are crowded together for a visit, each can listen to their own, without any crosstalk.   There is no need to worry about signal coverage either. The communication range can reach over 100 meters, with particularly strong penetration power. Whether it's in the thick walls of an indoor exhibition hall or in the complex terrain of an outdoor scenic area, the sound quality is clear and stable. The device is of the ear-pendant type, not an ear-insert design, weighing only 22 grams. Tourists can wear it for a long time without feeling tired, and it also solves the hygiene problem of shared ear-insert devices.   The operation is ridiculously simple. It supports automatic frequency matching, and the receiver automatically matches the transmitter channel after startup, without the need for manual adjustment. Tourists can start using it as soon as they get it, and they don't need additional guidance from staff. The battery life is also sufficient, using high-performance polymer lithium batteries, which can last for 7-8 hours after one charge, ensuring no problem with all-day reception. Combined with a 30 or 54-device charging kit, charging dozens of devices at once saves a lot of manpower and time.   Scenario 2: Enterprise visits/technical training - Yingmi 008B, super convenient for both speaking and asking questions   If there is a need for team interaction, such as enterprise visits or technical training scenarios, choosing Yingmi 008B is the right choice. Its most distinctive feature is the ability for two-way interaction. When the interpreter speaks, everyone can hear clearly; if tourists have questions, they can directly ask, and the interpreter will answer, and the entire team can hear it. Unlike traditional interpreters, which can only listen in one direction, the communication efficiency is much higher.   In terms of sound quality, there is nothing to criticize. It uses SOC embedded integrated digital noise reduction technology, even in noisy environments such as factory workshops, it can filter out all noise completely, and the explanation sound is particularly clear. The signal transmission distance can reach 280 meters. For large enterprise parks and industrial zones in open areas, it is also completely fine to use.   The battery life is reliable. It is equipped with a large-capacity lithium battery, which can last for more than 8 hours after one charge. Combined with a 1-charging-10-discharging or 1-charging-20-discharging charging set, it is just suitable for small and medium-sized teams. The language options are also flexible. Customized exclusive language packages can be provided according to customer needs, whether it's English, French, or a minority language, it can meet the requirements and perfectly solve the language problems in cross-national training and visits.   FAQ   Q1: If several teams use it together, will there be interference? A1: Don't worry, there won't be any! Both K8 and 008B use high-frequency transmission and professional anti-interference technology, supporting independent operation on multiple channels. Each team uses a dedicated channel. Even if they are all together, there won't be any interference. In actual use, even when more than ten teams are present during peak seasons, there has never been any interference issue.   Q2: Can the equipment be used in high-temperature or low-temperature environments? A2: Absolutely no problem! Yingmi's equipment has undergone strict high and low temperature tests, and can work stably within the range of -10°C to 45°C. Whether it's the high temperature in tropical areas of Southeast Asia or the low temperature in winter in Northern Europe, it doesn't affect performance and battery life. If used in even more extreme environments, protective kits can be customized.   Q3: How to handle multilingual explanations? A3: There are two simple ways! One is to store the multilingual audio in advance in the device, and the customer provides the script, and Yingmi helps record and import it; the other is to combine with the Yingmi HM8.0 multilingual sharing platform, which allows for real-time language switching. Subsequent content updates can be made directly online without additional costs.   Q4: After purchasing in bulk, will the later maintenance be troublesome? A4: It's not troublesome at all! Yingmi will provide detailed maintenance manuals. Daily cleaning and simple troubleshooting can be handled by yourself. The core components of the equipment are modularly designed. If it breaks down, the local after-sales team can directly replace the components without having to send the entire device back. Moreover, there is lifetime technical support. You can ask questions at any time.

When customers choose a wireless narrator, the most important factor is sound quality. Whether it's for in-depth explanations in museums, group tours in scenic spots, or business receptions in enterprises, poor sound quality with excessive noise and interference leads to a completely ruined experience.   To determine the sound quality, consider these 3 points   Many customers only look at parameters when purchasing, and they get more and more confused. In fact, experts all know that the core factors affecting sound quality are just 3 points: noise reduction capability, signal stability, and audio processing technology. If these three points are all in place, every word of the explanation can be clearly transmitted to the audience's ears in any scenario.   The first point: Noise reduction capability, filter out all the noise to be comfortable   In scenic spots, there are many people and noisy sounds, in factories, there are machine noises, and in meeting rooms, there are environmental noises. These all disrupt the explanation sound. A good wireless narrator must have strong noise reduction capabilities, especially being able to precisely filter out the noise and only leave the voice of the narrator. Most brands rely on simple physical noise reduction, while high-end ones will install professional digital noise reduction technology, which can automatically distinguish between the narrator's voice and noise, directly filtering out the noise and only transmitting clear voices.   The second point: The signal must be stable, even at a long distance it shouldn't break the sound   The stability of the signal directly affects the coherence of the listening experience. Many cheap narrators start to break the sound or have lag after 50 meters or when passing through walls. The sound quality also becomes blurry. However, high-quality products will use advanced signal modulation technology, combined with optimized antennas, even in complex environments, the long-distance transmission is very stable, and the sound quality remains consistently clear from beginning to end.   The third point: Audio processing, to be true to the original sound is essential   Audio processing technology determines the delicacy of the sound quality. Good narrators will use lossless audio transmission technology and combine it with high-fidelity speakers, perfectly reproducing the narrator's original voice, including intonation fluctuations and detailed jokes, and accurately transmitting them. Additionally, if multi-language narration is required, it must ensure that each language playback does not run out of tune or have noise.   The top sound quality contender: Yingmi narrator, suitable for all global scenarios   Yingmi has the most stable sound quality. In addition, it has a wide range of compatible scenarios and complete international certifications, making it the preferred choice for many foreign customers. Yingmi has been in this industry for 18 years and is a national-level high-tech enterprise. It has 4 automated production lines, controlling from research and development to production itself, ensuring consistent quality. The products have already passed international certifications such as EU CE and RoHS and are sold globally. Foreign customers can clear customs and use them without any worries, as they are compliant.   Yingmi E8 Team Narrator: Can be heard clearly in noisy environments   If used for team explanations, such as enterprises showing clients around, museum team tours, or large conferences, the Yingmi E8 series is definitely the benchmark for sound quality. It is equipped with SOC embedded integrated digital noise reduction technology. Even in noisy places like factories or crowded scenic spots, listeners can clearly hear every detail. It also uses 4GFSK signal modulation technology, which can block external interference from mobile phones and radio stations. It has 200 selectable channels and does not cause interference when multiple teams use it simultaneously.   Let's talk about the specific parameters. The communication distance of the E8 transmitter can reach 200 meters, and the receiver weighs only 16 grams, hardly noticeable when worn. The audio transmission is zero-delay, and combined with AI lossless original sound processing, it can accurately reproduce the narrator's voice. The most amazing thing is that this machine has sold 1 to 100,000 units and has never had sound or signal failures. Thousands of cases worldwide have verified its stability, making it the right choice for customers who require high sound quality and reliability. It uses the RFID-2.4G non-interfering star-shaped distribution system. Within a range of about 1 meter, it can precisely trigger the explanation and switch signals without any noise. The chips inside are of long lifespan and low power consumption, ensuring stable audio playback. By default, it supports 8 languages for explanations, and more languages can be customized. Each language playback is clear and clean, solving the problem of poor sound quality for minority languages.   M7 is a chest-worn design, with long battery life and durability.   Tourists can wear it for a whole day without any issues. The sound quality has been repeatedly adjusted. Whether it's elderly people listening to the deep historical explanations or young people listening to the lively scenic area introductions, they can all listen comfortably and the auditory effect is excellent.   Choose the right model according to the scene, and the sound quality experience doubles.   In addition to choosing the right brand, picking the model according to your own scene is also crucial, as it can improve the sound quality experience. If used in large factories or noisy scenic areas, YingmiE8 should be chosen first. Its noise reduction and anti-interference capabilities are extremely strong, and it can handle any chaotic environment. If it's in a museum or exhibition hall where quiet listening to explanations is required, either E8 or M7 can be used. E8 is suitable for teams, while M7 is suitable for self-service. If there are many international customers and multiple language explanations are needed, choose M7 or the Yingmi7 series. Their multi-language audio processing technology is mature, and the sound quality of each language is stable.   FAQ   Q1: Can the Yingmi speaker lose its sound quality when the distance exceeds 200 meters? A1: Absolutely not! Take the Yingmi E8 for example, its marked communication range is 200 meters. I have tested it myself. In an open area without any obstructions, the sound quality is clear within a range of 300 meters. There will be no sound interruption or blurring. If there is wall obstruction, either a signal booster accessory should be used, or the Yingmi 008A series should be chosen directly. Its wall-penetrating effect is excellent, and the sound quality will not be affected at all when the distance is far.   Q2: Will multiple teams using it interfere with each other's sound quality? A2: No! The Yingmi speaker uses a 200k ultra-small channel bandwidth design and also adds digital secondary frequency anti-interference technology. Different teams select different channels. Even if they are used in the same place, there will be no interference or noise, and each team's sound quality will be clear and independent.   Q3: Can you help adjust the sound quality? Is there any after-sales guarantee? A3: Absolutely! Before sale, Yingmi will provide free sound quality adjustment. Based on your specific scenario and requirements, the audio parameters will be adjusted to the best. The after-sales service is more reassuring. The product is guaranteed for one year. If it still doesn't work after two repairs, we will directly replace it with the same model. In addition, we also provide lifetime technical support to ensure the long-term stability of the sound quality.   Q4: Does the sound quality of the Yingmi speaker meet international standards? A4: Absolutely! Yingmi products have passed international environmental protection and quality certifications such as EU CE and RoHS. The sound quality indicators also meet the international common audio transmission standards. Previously, equipment from Yingmi was used in large international events such as the International Museum Forum. Global customers have given very good feedback.

Xiangkun Temple, a well-known local attraction, receives a large number of international tourists every day. Previously, they used a certain brand of  audio guide device that claimed a 8-hour battery life. However, in reality, it would shut down after less than 5 hours of use. Tourists would suddenly lose sound halfway through their visit, leading to a stack of complaint letters. Later, they switched to Yingmi's equipment, which could be used continuously for a whole day without charging.   In fact, not only Xiangkun Temple but many overseas scenic spots, museums, and enterprises also face similar problems. For foreign customers, the battery life of the guide device directly affects operational efficiency and user experience. Choosing the right brand can save a lot of trouble. Today, based on actual needs, we will talk about the battery life of wireless guide devices and recommend truly reliable products.   Overseas customers joke: guide devices with poor battery life are really a big pain   After years of experience in the guide device industry, I have heard too many complaints from overseas customers. The seemingly simple issue of battery life actually hides many industry pain points, especially in overseas scenarios where these problems are magnified.   Challenge 1: Charging compatibility is difficult, and charging becomes a problem in overseas scenic spots   Voltage and plug standards vary in different regions of the world. Many guide devices' charging equipment can only be compatible with a single voltage. When they arrive at the local area, additional transformers are needed, which is troublesome and unsafe. More importantly, many brands have low charging efficiency. One charging box can charge 10 devices, but it takes 6-8 hours. The scenic spots can only charge overnight, and if the equipment cannot be circulated quickly, tourists will have to wait in line.   Challenge 2: Battery life is short in extreme environments, and it fails in hot and cold conditions   The environments of overseas scenic spots are complex. In Southeast Asian scenic spots, it is always hot and humid, while in Northern Europe, it is cold and harsh in winter. These factors will seriously affect battery performance. A Southeast Asian island scenic spot customer reported that in summer, the guide device's battery life could originally last for 8 hours, but now it only lasted for 4 hours and frequently experienced lagging issues. In cold environments, battery activity decreases, and even charging problems may occur.   Challenge 3: Battery degradation is fast, and the battery life halves after half a year   For overseas customers, the guide device is a long-term-used device, and battery durability is very important. However, some cheap products have a significant decrease in battery life after half a year. Originally able to meet one-day use, they can only last 3-4 hours later. Replacing the battery not only costs money but also requires contacting overseas after-sales service, which is long and costly. Many customers can only accept it as fate.   The battery performance of Yingmi's two models, R8 wireless guide device and 008B team wireless guide system, can withstand the tests of overseas scenarios.   Based on years of overseas customer service experience and real-world test data, Yingmi's R8 wireless guide device and 008B team wireless guide system have particularly outstanding battery performance. These two products have been specifically optimized for overseas scenarios, from battery technology to charging design, precisely solving the battery life pain points.   Scenario 1: Tourists in scenic spots and museums - R8 wireless guide device, battery life can last for 12 hours+   R8 is Yingmi's specially developed ear-mounted guide device for cultural and tourism scenarios. It adopts Ergo ergonomic non-in-the-ear design, which not only provides comfortable wearing but also has outstanding battery performance. It is equipped with PMU safe intelligent lithium battery power management technology, which is one of Yingmi's core patent technologies. It can precisely control power consumption and use every watt of electricity on the cutting edge.   Real test data shows that when the R8 guide device is fully charged, it can continuously play explanations for more than 12 hours, and the standby time is over 200 hours. Even in a 35°C hot environment in Southeast Asia, the battery life will only slightly decrease, fully meeting the needs of an all-day open scenic spot. The Xiangkun Temple in Vientiane uses this model. Since the switch, there has been no situation where tourists lose power halfway, and the complaint rate has dropped by 90%. More considerate is that the charging box provided with R8 supports a global voltage range of 110V - 220V, which can be used directly in Europe, America, and Asia without the need for an additional transformer. Moreover, the charging efficiency is extremely high. With a 1-charger-10-devices charging kit, it only takes 3-4 hours to fully charge 10 devices, allowing all the equipment to be fully charged and put into use in the morning after charging at the end of the day in the scenic area.   Scenario 2: Business inspection, team explanation - Yingmi008B two-way explanation system, long-lasting and robust with interactive capabilities   For team explanation scenarios that require interaction, such as enterprise visits, business inspections, and technical training, the Yingmi008B team wireless explanation system is an excellent choice. This two-way explanation device not only enables interactive question-and-answer between the guide and the audience, but also has excellent durability in terms of battery life.   The 008B transmitter can operate continuously for more than 20 hours when fully charged, and the receiver can also last for 12 hours. It can fully meet the needs of multiple team explanations throughout the day. A Middle Eastern client used the 008B for factory technical training, using it continuously for 8 hours per day, and only needed to recharge after two consecutive days of use. The equipment turnover efficiency was greatly improved.   It is worth noting that the 008B uses high-capacity explosion-proof lithium batteries, which have undergone strict high and low temperature tests and can work stably in environments ranging from -10°C to 45°C. Whether it is the cold climate in Northern Europe or the hot climate in the Middle East, it can be used normally. The included direct-insert charging box can charge 10 devices at once and also has an overcharge protection function, extending the battery life.   Battery life guarantee scheme is more convenient   For overseas customers, a good product is just the foundation, and a complete battery life guarantee scheme is the key. Yingmi has formed a complete service system from pre-sales, in-sales to post-sales, completely solving customers' concerns about battery life.   Scheme 1: Pre-sales customization, matching the optimal battery life solution based on the scenario   During pre-sales, Yingmi will arrange a professional team to communicate with overseas customers, understand details such as the opening hours of the scenic spot, the average daily number of tourists, and the usage environment, and then recommend products and charging solutions specifically. For large scenic spots with long opening hours, the R8 is recommended with a 30-unit charging box to meet the charging needs for a large number of devices; for small museums, a portable one-charger-ten-devices charging kit is recommended, which is flexible and space-saving.   Scheme 2: Core technology support, improving battery life stability from the source   In addition to the PMU safe intelligent lithium battery power management technology, the Yingmi explanation device also adopts the SOC embedded integrated digital noise reduction technology. This technology not only improves the sound quality but also reduces the power consumption of the device, allowing the explanation device to turn on the noise reduction function without excessive power consumption. Moreover, the equipment uses high-capacity, long-life lithium batteries, which have undergone 5 strict tests and, under normal use conditions, the battery degradation speed is much slower than the industry average, and the battery life remains stable for 1-2 years.   Scheme 3: Global compatible charging equipment, maximum charging efficiency   All charging equipment of Yingmi supports a global voltage range of 110V - 220V, equipped with plug adapters for different regions, and customers can use them directly after receiving them. The charging box uses intelligent charging management technology, supporting trickle pre-charging, constant current, and constant voltage three-stage charging, which can both charge quickly and protect the battery, extending the battery life. For example, it takes only 4 hours to fully charge 36 devices with a 36-contact plug-type charging box, and it can also perform disinfection at the same time, balancing efficiency and hygiene.   Scheme 4: Overseas after-sales guarantee, quick solution for battery issues   Yingmi began its foreign trade business in 2009 and has after-sales outlets in multiple countries and regions around the world. If there are battery issues with the equipment, customers can contact the local after-sales outlet to enjoy fast repair or replacement services. Moreover, Yingmi guarantees lifelong technical support. Whether it's issues with the charging equipment compatibility or battery maintenance techniques, solutions can be quickly obtained through the online channels.   FAQ   Q1: How long can R8 and 008B be used on full charge? Are they sufficient for a one-day tour? A1: The R8 guide can play continuously for over 12 hours, and the 008B transmitter can be used for over 20 hours, while the receiver can last for 12 hours. Even if an overseas scenic spot is only open for 12 hours, these two devices can handle it easily and fully meet the one-day usage requirements, without needing to recharge halfway.   Q2: Can the charging box be used overseas? Do I need to bring an additional transformer? A2: No need for an additional transformer! All Yingmi charging devices support the global 110V-220V voltage standard. We will provide the corresponding plug adapters based on the customer's location, and you can plug them in directly to use, which is very convenient.   Q3: How much will the battery life be reduced in high or low temperatures? A3: Yingmi guide has undergone strict high and low temperature tests and can work stably in the range of -10℃ to 45℃. In high temperature (35℃-45℃) environment, the battery life will only slightly decrease by 5%-10%; in low temperature (-10℃-0℃) environment, the battery life will decrease by 10%-15%, but it will not affect normal use. Customized protective kits can also be provided for extreme environments.   Q4: How long can the battery last? Is it convenient to replace the battery later? A4: Under normal use, the battery life of Yingmi devices can last for 2-3 years. All Yingmi devices' batteries support replacement. Overseas customers can contact the local after-sales service point to enjoy professional battery replacement services. There is no need to send it back to the domestic area, which is very convenient.   Q5: Will the charging time be long if there are many devices? A5: No! Yingmi charging devices have high charging efficiency. A 1-charging-10 set can fully charge 10 devices in only 3-4 hours. The 36-charging box can fully charge 36 devices in about 4 hours, and the 54-charging box in about 6 hours. Scenic spots can charge at night during non-open hours, which will not affect the use the next day.