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Tour Guide System 796.0 - 821.0mhz With Clear Sound Quality2022-04-21 18:44:21 |
Neck Hung Audio Guide System Dual Channel 158 Channels2022-11-02 16:54:30 |
Bidirectional 250KHz Tour Guide System Long Transmission Distance2021-12-02 10:18:02 |
Intelligent Noise Reduction Audio Guide System Up To 280 Meters Away2022-04-21 16:06:15 |