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Exertis Supplies > Hardware > Communications > Headsets > Plantronics Blackwire 3220 USB-A Corded UC Dual Stereo Headset (Black) with Microphone
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Plantronics - Blackwire 3220 - Wired Dual-Ear (Stereo) Headset with Boom Mic - USB-A to connect to your PC and/or Mac - The Computer Store (Gda) Ltd.
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Q&A: The callers can't hear me through my Poly Blackwire 3220 headset. What can I do? - VoIP Insider
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