Audicom Pc Headset Adapter Computer Stereo Headphone Dual 3.5mm to Rj9/Rj10 Phone Jack Converter for Aastra Shoretel Cisco E20 Polycom 335 VVX400 Digium D40 D70 Altigen Telephone IP Phones(PC35-STAC)

CablesOnline, 1ft 3.5mm Jack to RJ9/RJ10 iPhone Headset to Cisco Office Phone Adapter Cable, IP-CS01

Onvian RJ9 Male to 3.5mm Female Plug Headset Jack Phone Audio Adapter Cable

Plantronics .Audio 355 Multimedia Headset

Telephone Training Adapter Y Splitter for Headset or Handset for Nortel Meridican, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge and Other Ip Phone

MillSO 3.5mm Jack Adapter CTIA - Y Splitter Audio Cable with Separate Microphone and Headphone Connector Compatible for PC, PS4 Gaming Headset- 8inch/20CM Black

Cyber Acoustics Stereo Headset, headphone with microphone, great for K12 School Classroom and Education (AC-201)

KINGTOP Headset Splitter Cable 3.5mm Female to 2 Male for PC Computer and Old Version Laptop

AGPtEK Hands-Free Call Center Noise Cancelling Corded Binaural Headset Headphone with 4-Pin RJ9 Crystal Head and Mic Mircrophone for Desk Phone - Telephone Counseling Services, Insurance, Hospitals

Headphone Splitter For Computer 3.5mm Female to 2 Dual 3.5mm Male Headphone Mic Audio Y Splitter Cable Smartphone Headset to PC Adapter