Features: The Virtual 7.1 Channel USB Audio Adapter is a very flexible audio interface Which can be used with desktop computers or notebooks/laptops; Rotates your stereo speaker or headphones in a 7.1 channel environment, no drivers required Required, just plug and play for instant audio playback, also compatible with All major OS USB bus power supply mode, no external power supply required Connectors: USB-A type, stereo jack output, microphone input Mono jack Functional keys: microphone mute, speaker mute, volume up, volume down Description: No driver required for Windows 98 SE/ME/2000/XP/Server 2003/Vista,Linux,MacOC System requirements: Desktop computer or notebook with USB port Xear 3D (Virtual 7.1 Channel Sound Simulation Software) for Windows XP/Vista Specifications: Size: 52*22*12mm Color: Blue Package Contents: 1 x 3D Sound Card