External USB 2.0 7.1 Channel 3D Virtual Audio Sound Card Adapter(Black) The USB Virtual 7.1 Channel sound adapter is a highly flexible audio interface which can be used dither with Desktop or Notebook systems. Bundled with Xear 3D sound simulation software, it turns your stereo speaker or earphones into 7.1 channel environment. No drivers required, just plug and play for instant audio playback, also compatible with all major operation systems * Features & specification 1) Complaint with USB 2.0Full-speed (12Mbps) Specification 2) Complaint with USB Audio Device Class specification 1.0 3) Complaint with USB HID Class specification 1.1 4) USB bus-powered mode, no external power required 5) Connectors: USB Type-A, stereo output jack, Mono microphone-input jack 6) Functional keys: Microphone-Mute, speaker- Mute, Volume-Up, Volume-Down 7) LED indicators: Microphone- Mute Status, Activity 8) Include Xear 3D, the virtual 7.1 channel simulation software for Windows XPVista 9) Driverless-No driver required for Windows 98SEME2000XPServer 2003Vista, Linux, Mac OS * System requirement 1) Desktop or notebook PC with a USB port 2) Windows 98SEME2000XPServer 2003Vista, Linux, Mac OS 10 or higher 3) Xear 3D (Virtual 7.1 channel sound simulation software) for Windows XPVista 4) Stereo active speaker or stereo earphone 5) Mono microphone ( Optional )