Features:
1. Water-resistant: IP67.
2. Use new technology of cavity design to make communication more clear.
3. Solid, strong and durable cable with Kevlar.
4. Robust PTT design with big revolving clips.
5. Emergency button optional.
Speaker
Size:40mm
Frequency response: 20-20000Hz
Sound Pressure Level: 94dB¡À3dB
Impedance: 8¦¸¡À15%
Audio output: 2W
Microphone
Type: Electret microphone
Frequency response: 20-16000Hz
Sensitivity: -40dB¡À2dB
Impedance: 2.2K¦¸