With super-thin finger PTT design, easy to fix on the finger or other device, operation is
more convenient.
Light, portable back headset design, wear comfortably, using is more conveninent.
PU cable compliance with ROHS contain high intensity Kevlar is very firm and endurable.
Waterproof Level: IP54

Speaker:
OD: Φ15mm
Resistance: 64 Ohm±15%  at 1000Hz
Sound Pressure Level: 89dB±3dB  at 1000Hz
Rated Power: 100mW
Max Power: 200mW

Microphone:
Type: Electret microphone
Sensitivity: -40dB±3dB  at
1000Hz（0dB=1V/Pa）
Resistance: 2.2KOhm