USB 7.1 Sound 5hv2 Sound 12 Channel Sound Adapter Equalizer USB 2.0 Steel Sound - Plug and Play Compatibility - Supports Virtual 3d Sound USB 2.0 Full-Speed (12Mbps), compatible with USB 1.0/ 1.1,Equalizer: 12 channels Connectors: USB Type-A, Stereo output jack, Mono microphone input jack Include Xear 3D, the Virtual 7.1 channel sound simulation software Driverless- No driver required Functional keys:Mircrophone-Mute,Speaker-Mute,Volume-Up,Volume-Down - Functional key not physically on Product but it seen after install set up and driver on PC or Laptop The USB Virtual 7.1 Channel Sound Adapter is a highly flexible audio interface which can be used either with Desktop or Notebook systems. Complaint with USB Audio Device Class Specification 1.0 No driver required,just plug and play for instant audio playback,also compatible with all major operation systems. Connectors:USB Type-A,Stereo output jack,Mono microphone-input jack Include Xear 3D,the virtual 7.1 channel sound simulation software for Windows XP/Vista