Connect a speaker or headphone directly to the adapter in order to enjoy the virtual 7.1 channel sound track. Get this great adapter without hesitation! Compliant with USB audio device class specification 1.0 Built-in volume control buttons USB 2.0 compliant host interface and USB Audio Device Class specification 1.0 No drivers required for Windows XP/2000/Vista/7 – Support 3D (Ac-3) sound & virtual 5.1 Channel sound track – USB 2.0 plug and play – No driver required for Windows 2000/XP/3003 etc – Digital Class-B Power Amplifier inside – Easy to install, just plug and play – Connectors: Microphone & Headset
