Specifications: Driver diameter: 40mm Impedance: 32Ohm Sensitivity: 105dB +/- 3dB at 1KHz Frequency range: 15Hz-20KHz Mic dimension: 6.0 * 5.0mm Mic sensitivity: -38dB +/- 3dB Mic impedance: 2.2kohm LED working voltage: DC5V +/- 5% Headset interface: 3.5mm + USB (USB for LED light) Cable length: Approx. 2.2m …