Note Not designed for smartphone Description 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. Compatible: USB pure digital audio output, virtual 7.1 channel proceing capability (actually 2.1 channels), the effect is similar to the motherboard integrated HD sound card, better than the AC97 integrated sound card effect, no noise, no current sound The microphone is very loud and is especially suitable for web chat Specification 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 Free drive: support WINXP, WIN7,win8.1,WIN2000,WIN3003 system does not need to install driver Package included 1 x usb sound card Note: 1.We don't offer retail package,but we will pack it well before shipped out. 2.Please allow 0-1cm error due to manual measurement. plz make sure you do not mind before you buy. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!