Bone Conduction Communication Device |Emergency communication equipment
Product Descriptions

The earphone unit has multiple ways of wearing to choose from, which can be used in conjunction with firefighting equipment such as air breathing masks and fire helmets. It will not damage or destroy the original structure and function of the masks and helmets, and is easy and convenient to wear.
It is equipped with a PTT kit, and the PTT control button converts the vibration signal of the microphone into a normal audio signal. After noise filtering and processing, it is amplified to a signal that matches the walkie talkie and then transmitted to the walkie talkie.Suitable for tasks where both hands cannot leave the device.



Ⅰ Headphone Unit - mask Type
It is specifically designed to be used in conjunction with fire masks, with simple operation and clear communication.Using bone conduction technology, compared with traditional air conduction methods, it can filter out the breathing sound of the air breathing mask during use, and has strong anti-interference ability.Specially fixed with screws, safe and secure, suitable for various forms of face shields without affecting the use of helmets and other protective equipment.
- Whole bone conduction
Integrated listening and speaking, convenient, easy to operate, freeing hands
- Bone conduction microphone
High sensitivity vibration sensor accurately collects sound signals
- Multiple adaptations
Multi angle and multi size adjustment, combined with various masks (like Honeywell, MSA, Dreager ,etc.)
- IP67
Reliable and durable, dustproof and waterproof

Adapt to various forms of face shields without affecting their original performance and the use of other protective equipment such as helmets

Ⅱ Earphone Unit - Ear Hanging Type
The device adopts a unique ear hanging design, which can be used in conjunction with firefighting equipment such as air breathing masks and helmets, without damaging or destroying the original structure and function of the masks and helmets. It is easy and convenient to wear
- Whole Bone Conduction
Integrated listening and speaking, convenient, easy to operate, freeing hands
- Open Binaural Design
Adopting an ear hanging design, it is mounted on both sides of the ear, with both ears open, allowing for the listening of ambient sounds.
- Multiple adaptations
No impact on the use of helmets, face shields, and other protective equipment
- IP67
Waterproof, temperature resistant, acid and alkali resistant

Ⅲ Headphone Unit - Head mounted
It does not affect the use of equipment such as fire helmets, gas masks, breathing masks, chemical protective suits, etc. It is easy to install and disassemble, easy to operate, ergonomic, and comfortable to wear.
Due to its unique arm/strap buckle design, it can be easily and securely installed in almost all standard helmets without the need for any tools, without affecting the use of respiratory masks and other protective equipment.


Product Features
- High sensitivity vibration sensor collects skull vibration signals and converts them into sound signals
- Thoroughly 'freeing hands', enhancing personal safety, and improving work efficiency
- Waterproof, temperature resistant, acid and alkali resistant
- Weight: 85g
- Working temperature: -25~+63 ° C (continuous)
- Working voltage: 2.5~10.0VDC
- IP67:Reliable and durable, dustproof and waterproof
Ⅳ PTT kit - M8 shoulder microphone
M8 bone conduction shoulder microphone is an auxiliary device specifically used for voice communication. It converts the vibration signal of bone conduction headphones into a sound signal, filters out noise, amplifies it to a signal that matches the walkie talkie, and transmits it to the remote walkie talkie.Built in voice enhancement module, relying on specific algorithms, combined with frequency response curve and actual usage environment.

Product Features:
- Using speech enhancement and noise reduction technology to effectively filter respiratory sounds and environmental noise.
- Using digital voice control technology to recognize human voices and trigger PTT, completely freeing hands.
- Sleep power-saving function, automatically shuts down if there is no voice signal input within 10 minutes.
- Shoulder microphone function. Can be used as a standalone shoulder microphone when not connected to headphones.
- Lighting function. Can provide auxiliary lighting in dark conditions.
- Close range amplification function, effectively amplifying human voice.
- Low battery warning function, with clear prompts when the battery is low.
- Can be powered by a walkie talkie, and can still communicate normally when the device is out of power.
- Support Bluetooth 5.0 communication, wireless distance ≥ 10 meters.
- Large PTT button design allows for flexible operation even with firefighting gloves.
- The back clip can rotate 360 degrees for easy adjustment.
- Standby time ≥ 72 hours, meeting the communication needs of fire rescue.
- Compatible with all communication units of Zhengze.
Ⅴ PTT kit - M5 shoulder microphone
The bone conduction shoulder microphone converts the vibration signal of the bone conduction communication unit into a regular audio signal, which is filtered and processed by noise, amplified to a signal that matches the walkie talkie, and then transmitted to the walkie talkie.

Product Features:
- Design: Oversized PTT button (front/side)
- Structure: Fully waterproof, built-in positive and negative air pressure regulating device
- Connectors: Quick blind plug connectors (customizable walkie talkie interfaces)
- Modes: ABCD four digital voice control modes
- Compatibility: Most walkie talkies on the market
- Function: Noise suppression, close range amplification, loudspeaker (optional)
Ⅵ PTT kit - M1 Manual Type
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Ⅵ PTT kit - M1 Manual Type
The M1 manual PTT button features a large button design, allowing for quick and precise operation even with heavy protective clothing and gloves.
Product Features:
- The oversized button design makes it easy to operate under heavy protective clothing and gloves.
- Fully waterproof structure, built-in positive and negative air pressure regulating device, capable of withstanding extremely high water pressure and impact.
- The back clip can rotate 360 degrees for easy adjustment.
- Using quick blind plug connectors, customize different walkie talkie interfaces according to requirements.
Compatible with most walkie talkies on the market

Application Scenarios





