Plantronics wireless headset - Connect to PC and mobile devices; seamlessly switch between the two - Seamlessly switch between PC and mobile phone communications - Optimized plug-and-play solution for Microsoft® Office Communicator 2007 - Bluetooth range optimized for in-office mobility - Wideband PC audio delivers heightened speech clarity and life-like fidelity - Single-button controls call answer/end, volume, and mute - Choice of easy-fit earloop or adjustable headband - Extended boom and noise-canceling microphone clarify voice transmission in bustling environments - Discretely sized charging stand keeps desk uncluttered.