EarlyBirdSavings Portable USB 2.0 External Audio 7.1 Channel Sound Card Adapter 3.5mm White Compliant with USB 2.0 Full-Speed (12Mbps) Specification.Compliant with USB Audio Device Class Specification 1.0. Connectors: USB type-A, Stereo output jack, Mono microphone-input jack. Led indicators: Microphone-Mute Status, Activity. Function keys: Microphone-Mute, Speaker-Mute, Volume-Up, Volume-Down. Driverless- No driver required for Windows Win98SE/ME/2000/XP/Server2003/Vista/Linux/MacOS. Material: Plastic,Electronics.Color: White. Weight: 29g.