Plantronics 3D Surround Sound Gaming Headset (USB Full Range Stereo) (Audio 770) 3D Audio Immersion, compatible with Windows &amp; Macintosh Use an analog connection into your PC or the USB sound card The noise cancelling microphone reduces background noise and brings the boom close to your mouth to minimize background noise. USB digitally enhanced surround technology delivers huge, virtual 3D surround sound. The open-ear design lets you strategize and play in real time with your teammates and hear your surroundings. Superb stereo sound and strong bass performance optimize your audio experience.