*Discontinued*  Replaced by the new  Plantronics Blackwire C520-M Dual-Ear USB Headset for MS Lync/OC 

The new Plantronics Blackwire C620-M is Optimized for Microsoft Office Communicator, For those who spend hours each day on long conference calls, webinars and video conferencing, the exceptional voice clarity and all-day comfort of the Blackwire 600 Series make communications more effective and productive. Featuring a flexible boom, a noise-canceling microphone and digital wideband telephony, the Blackwire C620-M delivers the performance and comfort necessary in busy calling environments. The over-the-head design can be worn in a binaural (dual earpiece) style and features generously padded ear cushions for optimal comfort during phone-intensive tasks.