Everyday use wired headset with mic Speaker size: 30mm Sensivitity: 110±3dB Frequency range: 20Hz-20KHz Speaker Driver impedance:32Ω士15% Microphone: 6.0X5.0mm Microphone sensitivity:-38±3dB Directionality: omni-directional 3.5MM 4PIN(1 Plug) Headset jack & Cable length: 1.6M±0.15