USB-enhanced digital sound quality</br>Noise-canceling microphone</br>QuickAdjust boom for precise positioning of the microphone</br>Lightweight and comfortable for hours</br>Analog or USB connection flexibility</br></br>Product Description</br></br>Plug the Plantronics .Audio 610 USB headset into your PC and start calling – choose the analog connection or the USB sound card. USB-enhanced digital sound ensures consistent audio quality every time. The QuickAdjust boom with noise-canceling microphone flexes for the perfect fit so callers hear only you. Or rotate it out of the way for listening to music and DVDs.</br><br/>http://www.amazon.com/gp/product/B000VEHT86