Plug Model : 3.5mm *2+USB
Speaker diameter : Ф50mm
Speaker Impedance : 32Ω
Speaker Freq. response : 20Hz - 20 KHz
Speaker Sensitivity : 110dB ± 3dB
Microphone Specification : 6*5mm
Microphone Sensitivity : -58dB
Microphone Directivity : Omni directional
Headphones Wire Length : 2M