Poly Sync 40, USB-A and USB-C Speakerphone/BT600 Dongle – Headsetters
StarTech.com USB-C Headphone Splitter USB Type C Dual Headset Adapter w/Mic USB C to 3.5mm Adapter - USBC-AUDIO-SPLITTER - Audio & Video Cables - CDW.com
Poly BT700 Bluetooth USB Adapter - Headsets Direct
Plantronics Voyager 5200-UC Bluetooth Headset | USB Dongle and Charging Case 206110-101 | For Smartphones, PC, MAC, Tablet, Softphones, VoIP, Unified Communications
PLANTRONICS VOYAGER B4220 2-EAR USB-C WIRELESS HEADSET - Dartmouth The Computer Store
BT600 USB-A / USB-C Adapter - High-fidelity Bluetooth USB Adapter | Poly, formerly Plantronics & Polycom
Poly Voyager Focus 2 Uc Usb-c Headset With Stand (plantronics) - Bluetooth Dual-ear (stereo) Headset With Boom Mic - Usb-c Pc / Mac Compatible - Anc : Target
Amazon.com: Poly - BT700 High Fidelity Bluetooth USB-A Adapter (Plantronics) : Electronics
Amazon.com: Bluetooth Range Extender for Headphones, Headsets, Speakers, Wireless Keyboard, Mouse, Compatible USB-C Dongles for Logitech, ASUS, Plantronics, Jabra, Improves Signal to Computer, Gaming Consoles : Electronics
Poly Voyager 4320 UC USB-C Wireless Headset-No Charging Stand
Poly BT600 Bluetooth USB Adapter/Dongle - Headsets Direct