Headset: Driver Unit: 40mm Diameter, Neodymium magnets, aluminum voice coil Frequency Response:20-20000Hz Sensitity: 100dB (1KHz) Impedance: 32 ohm Microphone: Frequency Response: 50 – 16,000 Hz Sensitivity: -58dBV/Pa (reference:0dB = 1 Pa,1KHz) Pickup Mode: Omni Cable: USB Cable: Braided Cable/ 2.2M in Length System Requirements: Windows XP/Vista/7/8 USB Connector Earmuff Dimemsion: H202mm*W165mm*D98mm Weight: 258g