Speaker Size: 40mm Sensitivity: 118+/-3db Microphone: 6.0*5.0mm Impedance:32Ω+/-15% Cable Length: 2.1M+/-15% Directionality: Omi-directional Microphone Impedance: 2.2k Frequency Range: 15Hz-20 KHz LED Working Voltage: DC5V Microphone Sensitivity: -36+/-3dB Headset Jack: USB+3.5mm 4Pin
