Compliant with USB 2.0 Full Speed (12 Mbps) 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 LED indicators: Microphone-Mute Status, Activity Support Windows 98SE / ME / 2000 / XP / Server 2003 / Vista / 7, Linux and Mac OS