5.1-Channel USB 2.0 External Digital Sound Adapter - Plug in Your Headphones and a Microphone Through a USB Port! Dynamode 5.1-Channel 3D USB 2.0 Audio Adapter General Features: Color: Translucent Blue Portable sound card for desktop or laptop Plug and Play USB 2.0 interface Stereo Sound Effects 3D Sound with 5.1 sound track support Transform analog sound signals to digital Digital Class-B power amplifier inside Lead-free RoHS compliance Connectors: One (1) 3.5 mm microphone jack