Plantronics Voyager 5200 UC Smart Sensor Bluetooth Headset with BT600 Adapter 17229164116 | eBay
Plantronics Voyager Focus B825 Wireless Stereo Bluetooth Headset (No BT600) | eBay
Amazon.com: Plantronics - Voyager Focus UC with Charge Stand (Poly) - Bluetooth Dual-Ear (Stereo) Headset with Boom Mic - USB-A Compatible with PC and Mac - Active Noise Canceling - Works with
BT600 USB-A / USB-C Adapter - High-fidelity Bluetooth USB Adapter | Poly, formerly Plantronics & Polycom