Check the listing for details. 2Pcs External USB 2.0 3D Virtual 7.1 Channel Audio Sound Card Adapter PC Laptop. Condition: New. Listed at 9.99 USD. Item Details Virtual 7.1 USB sound cardColor: WhiteVirtual 7.1 USB sound cardLine out for speakers / headphones - Line in for microphoneNo existing sound card required.This sound card works completely independentlyNo additional power required - Completely powered by the USB portCompatible with:Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10This USB sound card is only for PC and LaptopCompliant with USB 2.0 Full-Speed (12Mbps) SpecificationCompliant with USB Audio Device class Specification 1.0Compliant with USB HID Class Specification 1.1USB bus-powered mode, no external power requiredLED indicators: Microphone-Mute States, ActivityInclude Xear 3D,the virtual 7.1 channel sound effectDriver-less-No driver required for windows 98 SE/ME/2000/XP/Server 2003/Vista/ Windows 7.Linux Conversion1 inch = 25.4mm or 1mm = 0.0393 inchNote: Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand. Make sure you don't mind before you bid. Please allow 1-2mm differences due to manual measurement. Packing included:2 x USB sound adapter 7.1 channel