POLY BT300-M Bluetooth USB Adapter for Calisto 620 Voyager 5200 Legend B235-M | eBay
Poly - Calisto 3200 Wired Speakerphone (Plantronics) - Personal Portable Speakerphone for Conference Calls- USB-A Compatible - Connect to your PC/Mac - Works with Teams, Zoom & more : Office Products - Amazon.com
Nuance 29-A11A-10510 Plantronics Calisto Bluetooth Headsets with USB Adapter / Dictation / Archive - YBSales.com
Amazon.com: Plantronics BT300 Bluetooth 2.0 Adapter for Calisto 620 : Electronics
Amazon.com: Poly Calisto 5300 Personal Bluetooth Speakerphone + USB-A BT600 Adapter (Plantronics) - Connect to PC/Mac via USB-A Bluetooth Adapter, Mobile via Bluetooth - Works w/Teams (Certified), Zoom, & More : Electronics
Plantronics BT600 Bluetooth USB Adapter for Voyager 5200 Voyager Focus UC B825-M | eBay
Plantronics Bluetooth Conference Wireless Speakerphone Calisto 7200 with USB-C | Compatible with MAC/PC, USB, Polycom VVX USB Deskphones | Rechargeable - Global Teck
PLANTRONICS CALISTO B70 HS-BLUE-PL NUANCE WIRELESS BLUETOOTH HEADSET & ADAPTER | eBay
Plantronics Calisto 7200 USB & Bluetooth Speakerphone - 207913-01
Plantronics Calisto P240 USB Handset (57240-004) - VDO Communications