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Bone-conduction communication device

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[Zhengze Technology] The bone-conduction communication device employs full bone-conduction technology, capturing speech by sensing vibrations. It features noise suppression in high-noise environments, ensuring clear call recognition even under noisy conditions. Ergonomically designed, it is compact and lightweight, offering comfortable wear and easy operation to enhance work efficiency. The earpiece unit supports multiple wearing configurations and can be used with firefighting gear such as air‑supplied respirators and fire helmets without compromising the original structure or functionality of these devices. It is simple and convenient to put on. Equipped with a PTT kit, the PTT control button converts the vibration signal from the microphone into a standard audio signal. After noise filtering and amplification, the signal is matched to the intercom’s input level and transmitted to the intercom. This makes it ideal for tasks where both hands must remain on the equipment.

Service Hotline:400-966-1998

Product Details

The bone-conduction communication device employs full bone-conduction technology, capturing speech by sensing vibrations. It features noise suppression in high-noise environments, ensuring clear call recognition even in noisy conditions. Ergonomically designed, it is compact and lightweight, offering comfortable wear and easy operation to enhance productivity.

The earpiece unit offers multiple wearing options and can be used in conjunction with firefighting equipment such as air‑supplied respirators and fire helmets, without compromising the original structure or functionality of these devices. It is simple and convenient to wear.

Equipped with a PTT kit, the PTT control button converts the microphone’s vibration signal into a standard audio signal. After noise‑filtering, the signal is amplified to a level compatible with the walkie‑talkie and then transmitted to the device. This solution is ideal for tasks that require both hands to remain on the equipment at all times.

Application scenarios:

Urban rescue, maritime rescue, tunnel rescue, public security emergency response, forest rescue, event security, and more.

I. Earphone Driver Unit

1. Earphone unit – over-ear type

Specifically designed for use with firefighting masks, it offers simple operation and clear communication. Utilizing bone conduction technology, it filters out the breathing sounds generated by air‑supplied respirators during use, providing strong resistance to interference. Equipped with a dedicated screw‑on mount, it ensures secure, reliable attachment while accommodating various mask designs without compromising the usability of helmets or other protective gear.

Product Features:

All‑bone conduction technology: reportedly integrated, compact and convenient, easy to operate, and hands‑free.
Multi‑compatible: Adjustable to multiple angles and sizes, and compatible with a variety of facepieces (e.g., Honeywell, MSA, Dräger, etc.).
Bone-conduction microphone: A high-sensitivity vibration sensor precisely captures sound signals.
IP67: Reliable and durable, dustproof and waterproof.

It is compatible with a variety of mask types without compromising the original performance or the usability of helmets and other protective gear.

2. Earphone unit – Ear-hook type

The device features a unique ear‑hook design that is compatible with firefighting gear such as self-contained breathing apparatus masks and helmets, without compromising the original structure or functionality of these items. It is easy and convenient to wear.

Product Features:

All‑bone conduction technology: reportedly integrated, compact and convenient, with easy-to-use wear.
Multiple compatibility: Wearing it does not interfere with the use of helmets, face shields, or other protective gear.
Open-ear design: Featuring an ear-hook style that attaches to both ears, it keeps your ears open and allows you to hear ambient sounds.
IP67: Waterproof, temperature-resistant, and resistant to acids and alkalis.

3. Headphone Unit – Over-Ear Type

It employs bone-conduction technology to capture and transmit speech by sensing vibrations. It does not interfere with the use of firefighting helmets, gas masks, respirators, chemical protective suits, or other equipment; it is easy to install and remove, simple to operate, ergonomically designed, and comfortable to wear. Thanks to its unique arm‑strap locking mechanism, it can be securely and effortlessly mounted in virtually any standard helmet without the need for tools, while leaving other protective gear—such as respirators—unimpeded.

Product Features:

A high-sensitivity vibration sensor collects cranial vibration signals and converts them into audio signals.
Completely “free your hands,” enhance personal safety, and boost work efficiency.
Waterproof, temperature-resistant, and resistant to acids and alkalis.
Weight: 85 g.
Operating temperature: -25 to +63°C (continuous).
Operating voltage: 2.5–10.0 VDC.

II. PTT Kit

1. PTT Kit — M8 Shoulder Mic

The M8 bone-conduction shoulder microphone is an auxiliary device specifically designed for voice communication. It converts the vibration signals from a bone-conduction headset into audio signals, applies noise‑cancellation processing, and amplifies them to a level compatible with walkie-talkies, enabling transmission to a remote unit. It features a built-in voice‑enhancement module that leverages proprietary algorithms, tailored to the frequency response curve and real-world operating conditions.

Product Features:

Utilizing speech enhancement and noise reduction technology, it effectively filters out breathing sounds and ambient noise.
Utilizing digital voice‑activated technology, it recognizes human speech to trigger the PTT, fully freeing your hands.
Sleep mode with power-saving: the device will automatically shut down if no voice signal is detected for 10 minutes.
Shoulder mic functionality: when no headphones are connected, it can be used as a standalone shoulder mic.
Lighting function: provides auxiliary illumination in dark conditions.
Close-range amplification effectively enhances vocal clarity.
Low-battery alert: a clear notification is displayed when the battery level is low.
It can be powered by a walkie-talkie, allowing for normal communication even when the device is out of battery.
Supports Bluetooth 5.0 communication, with a wireless range of ≥10 meters.
Extra-large PTT button design allows for flexible operation even when wearing fire‑fighting gloves.
The back clip rotates 360 degrees for easy adjustment.
Standby time ≥ 72 hours, meeting the communication requirements of fire and rescue operations.
Compatible with all Zhengze communication units.

2. PTT Kit — M5 Shoulder Mic

The bone-conduction shoulder microphone converts the vibration signals from the bone-conduction communication unit into standard audio signals, which are then filtered to reduce noise, amplified to a level compatible with the walkie-talkie, and transmitted to the device.

Product Features:

Headset function: Use it standalone for direct two-way communication.
Voice-activated control (optional): Suitable for tasks that require both hands to remain on the device.
Noise suppression: Enjoy clear calls even in high-decibel environments.
Public Address Function (Optional): Close-Range PA System

3. PTT Kit – M1 Manual Type

The M1 manual PTT button features an oversized design, enabling quick and precise operation even when wearing bulky protective gear or gloves.

Product Features:

Compatible with most walkie-talkie connection cables on the market.

Consult now to receive a customized rescue plan!

Service Hotline: 400-966-1998
Business Cooperation: business@nj-zhengze.com
Company Address: Floors 4–5, South Building No. 3, Software Valley Science and Technology City Industrial Park, No. 32 Dazhou Road, Yuhuatai District, Nanjing City

Keywords:

Bone-conduction communication device