Anitech Stereo gaming headphone with Mic AK71 Single jack (8859221700068)

Driver Unit: 40mm.
Frequency response 20Hz-20 kHz
Impedance: 32Ohm
Maximum Power Input: 100mw
Sensitivity: 118dB S.P.L at 1 KHz+/-2%
Microphone
Driver Unit: 6*5mm
Frequency response 16Hz-20 kHz
Impedance: 2.0k Ohm
Maximum Power Input: 0.4mW
Sensitivity: -55dB, 0dB=1V/Pa at 1 KHz