1) Easy-to-covert wires of the Mic, speaker and PTT;
2) Convenient controller for adjustment of channel and volume, etc;
3) Detachable transparent tube for easy replacement and better personal hygiene;
4) Reliable PU wire designed with bullet-proof material Kevlar.

Speaker specifications:
Sound Pressure Level: 109±3dB @1KHz 10mW (finished product)
Power: 10mW(rated)/30mW(max)
Impedance: 90Ω±15%1kHz

Microphone Specifications:
Sensitivity: -42±3dB@1kHz, 0dB=1V/pa
Impedance: ≤2.2kΩ@1kHz
Operating Voltage: 1–10VDC
PTT Life Circle: ≥100,000 times

Operating Temperature: -20 to 60℃

Application: for users (such as the policemen) who require discreet communication.
Applicable to:  X1e and X1p.