Description: 1.USB Virtual 7.1 Channel Audio Sound Card Adapter 2.Easy to use, No drivers required, Plug and Play 3.Compliant with USB 2.0 Full-Speed (12Mbps) Specification 4.External power adapter NO NEED 5.LED indicators: Microphone-Mute States, Activity 6.Include Xear 3D,the virtual 7.1 channel sound effect 7.System Requirement: Windows 98 / 2000 / xp / Win7 8.Color: WhitePacking Included:1.1 x USB 2.0 Sound Card