2.5 mm headset - Innotalk Voice Tube Mic Binaural Headset with Swiveling Speaker + 2.5mm Headset Plug Built in Plantronics Compatible QD - Walmart.com
Plantronics QD Cable 2.5mm
Amazon.com: 2.5 mm Headset - Luxury Quick Disconnect Headset Compatible with Plantronics QD : Electronics
Buy Telephone Headset w/ 2.5mm Jack Quick Disconnect Cord for Cisco Deskphone Plantronics Avaya Siemens Cordless DECT Phone for Call Center Office Work from Home w/ 3.5mm Audio Jack for Cell Phone
Buy Telephone Headset w 2.5mm Jack Quick Disconnect Cord for Cisco Deskphone Plantronics Avaya Siemens Cordless DECT Phone for Call Center Office Work from Home w 3.5mm Audio Jack for Cell Phone