This USB 2.0 Mic/Speaker 3D Audio Sound Card Adapter is a highly flexible audio interface, which can be used with either laptop or desktop system. No driver required, plug-and-play for instant audio playing and compliant with all mainstream operation systems. Features : Compact, portable, convenient to carry. Compliant with USB 2.0 Full-Speed (12Mbps) Specification. Compliant with USB Audio Device Class Specification 1.0. Compliant with USB HID Class Specification 1.1. USB Bus-powered mode, no external power required. Connectors: USB Type-A, Stereo output jack, Mono microphone-input jack. 2 LED indicators. Driverless for Windows 98SE/ME/2000/XP/Server 003/Vista/Linux/Mac OS. Specifications : Device Type: USB 2.0 Mic/Speaker 2.1 CH 3D Audio Sound Card Adapter. Device Interface: USB Type-A, Stereo output jack, Mono microphone-input jack. Function Keys: Microphone-Mute, Speaker-Mute, Volume-Up/Down. Dimension: 1.8" L x 1.0" W x 0.6" H (45 x 25 x 14 mm). Weight: 0.5 oz (14 g).