USHAWN USB External Sound Card 3D Audio Adapter for Windons/Mac/Computer/Laptop/PC with Mircophone Music Singing Digital Sound Cards (Black) USB external stereo sound card adapter: One-Key Operate to aviod noise and control microphone,mac, computer and so on External usb 3D sound card works with your PC or Mac/Microphone and any other system Audio Interface stereo headphone output with dedicated level control lets you monitor both input and output USB bus-powered, no external power required,Plug and play No setup No drivers Needed Compliant with USB 2.0 Full Speed (12Mbps) Specification, the lastest high technologic chip