Speaker: F40mm Dynamic type
Sensitivity: 105dB +/- 3dB (at 1K Hz )
Freqency Response: 20Hz-20, 000Hz
Max Input Power: 100mW
Cable Length: 2.5m +/- 0.3m
Microphone: 6*5mm, -54dB +/- 3dB
Plug Type: F3.5mm Stereo