Blackwire-710-710-M-720-720-M/Blacktop 500 Date Code Location
Plantronics Blackwire C710 UC Headset - Headsets Direct
Amazon.com: ITSPWR Bundle Plantronics® (Poly) Encore Pro 710 Monaural Style Headset for Office, with a Type-C 4-Port Hub, Conference Headset with Noise Cancelling Microphone, works with Teams, Zoom, Cisco and etc :
Plantronics Blackwire C710 UC Headset - Headsets Direct
Plantronics Blackwire C710 Black Headset for sale online | eBay