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
Axtel ELITE Duo Headset Package for Polycom IP Phones – Shop4Tele
Poly (Plantronics + Polycom) Wired USB Headset
Polycom IP Phone VVX 411 (12-lines) Office Deluxe Bonus Bundle with Plantronics Headset | Includes EncorePro HW540 with M22 Vista Adapter - Mute/Volume controls