Type : 3.5MM Stereo/USB Stereo
Speaker diameter:Ф30mm
Speaker Impedance:32Ω
Speaker Frequency response: 20Hz - 20KHz
Speaker Sensitivity:110dB±3dB
Microphone Specification:6*5mm
Microphone Sensitivity : -58dB
Microphone Directivity: Omni directional
Wire Length:3.5mm=1.2M/USB=2m
Adaptor Length:1.4M