(5 Pack) USB Sound 5Hv2 USB 7.1 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 .