High quality, classic design stereo headphones with microphone and volume control. Built-in vibrations and 7.1 surround sound simulator. Easy adjustable, elastic, soft padded headband. Big, soft ear cushions are covered with noise canceling leatherette material. Compatible with all popular sound cards and audio devices. Enjoy high quality sound during long hours of playing games, in music listening, movie watching and during talking by internet communicators. TECHNICAL DATA: - 7.1 surround sound - built in vibrations - soft ear cushions - volume control - sensitivity: 105dB at 1kHz - impedance: 32? - frequency response: 20Hz-20.000Hz - rated power: 150mW - microphone frequency response: 30Hz to 16.000Hz - microphone sensitivity: -58dB±2dB - cable length: 2m - plug: 1 x USB