Poly Voyager 4310 UC Wireless Headset - Single-Ear Bluetooth Headset w/Noise-Canceling Boom Mic - Long Battery Life - Connect to PC/Mac/Mobile via Bluetooth - Works w/Teams, Zoom & More, Plantronics : Amazon.co.uk:
Plantronics Ml15 Bluetooth Headset Mobile Phone Hands Earpiece for sale online | eBay
Plantronics Bluetooth Headphones BackBeat GO 600 Wireless Over-Ear Headset 18hr 17229164000 | eBay