Earphone type: metal models in-ear Socket:  3.5(φmm)Sound generation principle: moving coil typeSpeaker diameter:  (10φmm)Mic wind:MIC -42±3dB(dB)Cable length: 1.15mSpeaker impedance:  16ΩSensitivity: 93±3dB(dB)Horn power: 3-5MWFrequency response  range:20-20000HZ(hz)                         Product function:Play/pause/answer/hang up/up/down song selection/up/down  volumeProduct material: TPE + ABS +aluminium alloy