Amazon.com: Poly - Voyager 4320 UC Wireless Headset + Charge Stand (Plantronics) - Headphones with Boom Mic - Connect to PC/Mac via USB-C Bluetooth Adapter, Cell Phone via Bluetooth - Works with
Plantronics HW720 EncorePro Over-the-Head NC Headset (78714-101) at Macondo
Amazon.com: INNOTALK Wireless Headset Compatible with Poly Polycom VVX300, VVX310, VVX400, VVX410 and Any VVX Model with EHS Remote Answering Cord Bundle(Pioneer) : Electronics
Poly Blackwire 8225 UC USB Headset - Headsets Direct
Amazon.com: Poly Voyager 5200 Wireless Headset (Plantronics) - Single-Ear Bluetooth Headset w/Noise-Canceling Mic - Ergonomic Design - Voice Controls - Lightweight - Connect to Mobile/Tablet via Bluetooth : Cell Phones & Accessories