Sabrent Aluminum USB External 3D Stereo Sound Adapter for Windows and Mac. Plug and Play No Drivers Needed. [Black] (AU-DDAB) Function keys: microphone-mute, speaker-mute, volume-up, volume-down. 3D stereo USB audio adapter. LED indicators: microphone-mute status, activity. Plug & Play, no drivers needed, No external power required. 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 &amp; Play, no drivers needed. Windows: XP/Vista/7/8/8.1/10 (Both 32-bit &amp; 64-bit versions) Mac OS 8.6 or above USB audio sound adapter 2 Feet Extension USB cable