Designed for mobile professionals in the office or on-the-go, this single earset 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. AudioIQ 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.