Features:<br>The USB Virtual 7.1 Channel Sound Adapter is a highly flexible audio interface <br>which can be used either with Desktop or Notebook/Laptop systems; it turns <br>your stereo speaker or earphones into 7.1 channel environment,No drivers <br>required,just plug and play for instant audio playback,also compatible with <br>all major operation system<br>USB bus-powered mode,no external power required<br>Connectors:USB Type -A,stereo output jack,Mono microphone input jack<br>Functional keys:Microphone-Mute,Speaker-Mute,Volume-up,Volume-down<br><br>Description:<br>No driver required for Windows 98 SE/ME/2000/XP/Server 2003/Vista,Linux,MacOC<br>System requirement:Desk top or notebook PC with a USB port Xear 3D (Virtual 7.1 <br>Channel Sound simulation software)for Windows XP/Vista<br><br>Specifications:<br>Size: 52*22*12mm<br>Color: Blue<br><br>Packing Content:<br>1 x 3D sound card <br>