Plantronics Blackwire C520-M - headset

Corded reliability that's ready when you are. Meet the Blackwire 500 series corded USB headsets with the industry-first Smart Sensor technology. It easily and intuitively juggles PC calls and multi-media using audio alerts to manage connection, mute and volume status. With easy portability, it offers premium Hi-Fi stereo audio and all-day comfort at your desk or at home.