Frequency Response: 20~22, 000Hz Impedance: - Headphone: 300 Ohms - Mic: 1.5k Ohms Sensitivity(S. P. L): - Headphone: 105dB - Mic: -58dB Rated Power: - Headphone: 200mW - Mic: 0.5mA Driver Diameter: 40mm Plug: 6.5mm or XLR Cord Length: 6~8ft