kebidumeiVirtual 7.1CH Microphone External USB Audio Sound Card USB To Jack 3.5mm Converter Headphone Adapter Mic Sound Card Headsets Not designed for smartphone - 3D stereo USB audio adapter - USB 2.0 Hi-Speed specification - Backward compatible with USB 1.1 - Connectors: USB type A, stereo output jack, microphone input jack - No external power required - Plug & Play, no drivers needed USB connectivity with 3.5mm audio headphones, headset, speakers, or microphone. Perfect to bypa a faulty sound card, audio port, or as a replacement for USB audio adapter. Specifications: Material: Aluminum Alloy Colors: Black Size: Approx.42x 30x 12mm Net weight: 14g System requirements: for Windows 8, for Windows 7, for Windows Vista, for Windows XP, for Mac OS 8.6 or above Package included: 1 x usb sound card