Condition
Plantronics BlackwireC520-M-Duo-R. Certified Refurbished . . The Plantronics BlackwireC520-M-Duo-R is a 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 (Blackwire 520) and all-day comfort at your desk or at home. . . BlackwireC520-M-Duo-R
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