Designed for mobile professionals in the office or on-the-go, this single headset lets you seamlessly switch between calls received on your PC and those received on your mobile phone. Wideband technology sharpens PC audio and delivers rich, natural-sounding voice and multi-media transmissions. The Voyager PRO UC headset offers dual noise-canceling microphones on the boom, AudioIQ² technology, and three layers of WindSmart® technology to ensure that you hear every word and that your voice is heard clearly despite the noise around you or what you are connected to: your PC, mobile or smart phone. Voyager PRO UC is available in the Plantronics UC standard version and the Optimized for Microsoft® Office Communicator 2007 version.