SYBA external USB Stereo Sound Adapter for Windows, Mac, Linux Extra Audio Source with Microphone SD-CM-UAUD 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, Near full 5V power ouput to Microphone Connectors: USB Type-A, Stereo output jack, Mono microphone-input jack LED indicators: Microphone-Mute Status, Activity FG-UAUDV1-C119