Plantronics Blackwire 5220 USB & 3.5mm UC Corded Headset Features:
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Plantronics Blackwire 5220 Corded USB & 3.5mm Binaural UC Headset Brochure
Plantronics Blackwire 5220 Corded USB & 3.5mm Binaural UC Headset User Guide
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