Plantronics Blackwire C3220 review: A good headset for the office | Windows Central
Plantronics Blackwire 3220 DUO USB-C Headset with 3.5mm Connector | Certified for Skype for Business and Optimized for Microsoft Lync | Built for UC applications and softphones from Avaya, Cisco and others | 209749-101
Amazon.com: Plantronics - Blackwire 3220 - Wired Dual-Ear (Stereo) Headset with Boom Mic - USB-A to connect to your PC and/or Mac : Electronics