Frequency Response: 20~22,000Hz Impedance: - Headphone: 32 Ohms - Mic: 1.5k OhmS Sensitivity(S.P.L): - Headphone: 108dB?dB(at 1KHz) - Mic: -58dB?dB Rated Power: - Headphone: 100mW - Mic: 0.5mA Driver Diameter: ?0mm Plug: ?.5mm Cord Length: 6~8ft