Poly - Voyager Office Base (Plantronics) - Compatible with Voyager Focus 2 and Voyager 4300 UC Series Headsets (Sold Separately) - Connect to PC/Mac, Deskphone, & Cell Phone

Plantronics APN-91 Electronic Hook Switch Adapter (89280-11) , Black

Plantronics Style Poly Headset Splitter and Telephone Audio Cable-Supervisor Agent Training Y-Cord with Mute Button -Compatible with EncorePro, Encore, HW Series for Call Center, Office Training

TruVoice Computer Headset Bundle for Training | Monitoring | Supervising : Includes 2 x HD150 Headset with NC Microphone, Training Splitter Y Cable and USB Adapter Compatible with PC and Softphones.

Wantek Yealink Phone Headset with Quick Disconnect Cord, RJ9 Office Telephone Headsets with Mic Noise Cancelling Compatible with Yealink VoIP Phone T21P T42S T46S T48S T27G T53W T54W Grandstream Snom

CISCO Headset 531, Wired Single On-Ear Quick Disconnect Headset with RJ-9 Cable, Charcoal, 2-Year Limited Liability Warranty (CP-HS-W-531-RJ=)

Poly DA75 USB-A/USB-C digital adapter - Works with Poly Call Center Quick Disconnect (QD) Headsets - Works with Avaya, Genesys,&Cisco call center platforms

TWAComm.com Yealink YHS34-LITE-MONO Wideband Headset for Yealink IP Phones