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| MOQ: | 1 |
| Price: | negotiation |
| Standard Packaging: | packed in carton box |
| Delivery Period: | 5-8 working days |
| Payment Method: | L/C, paypal |
The B7-2 is a 2.4GHz wireless tour guide system pairing a rechargeable transmitter with lightweight ear-hook receivers. It gives every guide group its own clean channel, with enough battery life and range to run full days of tours without interruption.
Everything here is built around one constraint tour operators care about most: running many groups in the same space without cross-talk or charging headaches.
Operating on 2.4GHz FHSS from CH:001 to CH:999, each transmitter can be assigned its own channel so overlapping tour groups stay isolated from one another.
A full set of receivers pairs to a transmitter in seconds using one-key auto-pairing, or staff can set a fixed channel manually for repeat daily tours.
Transmission holds steady from 50 up to 300 meters, enough for visitors to wander ahead in large halls or outdoor grounds without losing the narration.
The transmitter's 3000mAh battery runs up to 20 hours with Bluetooth off, and charges from either its dock or a standard USB-C cable at 0.8A.
At roughly 12g each, the receivers stay comfortable through hours of wear, with Bluetooth 5.2 support and 7–20 hours of playback depending on volume.
Guides can mute instantly during pauses or private conversations, while the transmitter's LCD keeps channel, battery, and pairing status visible at a glance.
The same hardware moves between venue types without reconfiguration, which is why operators managing more than one kind of tour tend to standardize on it.
| Transmitter | |
|---|---|
| Working Frequency | 2.4GHz, 999 channels (CH:001–CH:999) |
| Charging Method | Charging dock or USB-C cable, 0.8A, approx. 4 hours full charge |
| Operating Temperature | -20°C to +70°C |
| Microphone | Unidirectional, 3.5mm input for plug-in mic |
| Transmission Range | 50–300m (open area) |
| Standby Time | 20 hours (Bluetooth off) |
| Dimensions | 114.7mm (L) × 55.3mm (W) × 20.8mm (H) |
| Battery | 3000mAh, 3.7V |
| Receiver | |
| Dimensions | 50mm (L) × 50mm (W) × 14.5mm (H) |
| Weight | Approx. 12g per earpiece; 85g per full set (two earpieces + charging case) |
| Bluetooth | Bluetooth 5.2, device name "A16" |
| Call Distance | 100–250m |
| Battery Life | 7–20 hours (depending on volume level) |
| Battery | Earpiece: 3.7V, 100mAh · Charging case: 3.7V, 300mAh |
| Charging | Via case: approx. 2 hours · Case via USB-C: approx. 2 hours |
Working with a factory directly means fewer steps between your requirements and a working system in your guides' hands.
Tell us group sizes, venue type, and daily tour volume.
We recommend a configuration and confirm pricing and lead time.
Once confirmed, units move into production and quality checks.
Units ship with setup guidance and ongoing after-sales support.
Every B7-2 order includes a standard warranty period, with technical staff available to help with pairing, channel planning, or replacement parts if an issue comes up after delivery.
With 999 selectable channels, most venues can run far more simultaneous groups than they'll ever need; the practical limit is physical spacing, not channel availability.
No. Tour narration runs over the 2.4GHz channel between transmitter and receiver. Bluetooth is only needed for calls or device pairing setup.
The transmitter runs up to 20 hours with Bluetooth off, and receivers run 7–20 hours depending on volume — enough for most operators to cover a full day without a mid-shift charge.
Yes. Let us know your guide-to-visitor ratio and we'll put together a configuration and quote to match.
Send us your venue type and group sizes, and we'll put together a configuration and quote.
