Yealink EHS40 - wireless headset adapter for wireless headset, VoIP phone - EHS40 - -
EHS Wireless Headset Adapter
JK Audio CellTap 4C Wireless Phone Audio Tap Adapter CELLTAP4C
OvisLink Call Center Headset Training Adapter Compatible with All RJ9 Headsets, Included Wireless headsets Connect 2 RJ9 headsets to 1 Telephone Mute Buttons for Each of The Headsets - Walmart.com
Poly Voyager 4310 Uc Wireless Headset (plantronics) - Single-ear Headset With Boom Mic - Connect To Pc /
Htek EHS30 Wireless Headset Adapter for Jabra & Plantronics Headsets
Jabra HHC Adapter for Jabra Wireless Headsets and Cisco 14201-16
RJ9 Phone Headset - Plantronics Compatible QD Headset + Virtual Compatibility Smart Adapter for Cisco Avaya Nec and Most Phones - Walmart.com
Yealink IP Phone Wireless Headset Adapter | For SIP-T48S/T48G/T46S/T46G/T42S/T42G/T41S/