It is a compact and lightweight headphone unit designed for use in hazardous environments. It uses bone conduction technology to pick up and transmit voice by sensing vibration. It does not affect the use of fire helmets, gas masks, breathing masks, chemical protective clothing and other equipment, convenient installation and disassembly, simple operation, ergonomic wear comfort. Thanks to the unique arm/strap latch design, it can be easily and very firmly installed in all standard helmets without any tools, without affecting the use of other protective equipment such as breathing masks.

The vibration signal of the pickup is converted into an ordinary audio signal, which is amplified to a signal that can be matched by the walkie-talkie after noise filtering, and then transmitted to the walkie-talkie. Large button structure design, even if spaced thick gloves or heavy protective clothing (firefighters) can be easily activated. 360° rotating back clip, easy to wear, firm and stable. With the walkie-talkie using waterproof quick connection plug, walkie-talkie connection cable with anti-pull design, can quickly replace different walkie-talkie connection line, suitable for different types of walkie-talkie use.