Headset Buddy Male Headset Plug to RJ9 Male Audio Cable for Amplifiers and Bluetooth Headsets (35M-RJ9M)

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

Nobsound MC1024 2-Way Microphone Headset/Speaker MIC Audio Switch Hub Switcher 3.5mm 4-Pole MIC A&B Selector

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

Headset Buddy Male 2.5mm to Male RJ9 / RJ10 Sub-Mini Audio Adapter Cable for Amplifier or Wireless Receiver Base Station (25M-RJ9M)

Headset Buddy: PC Dual 3.5mm Headset to RJ9/RJ10/RJ22 Phone Adapter (PC35-RJ9A)

Headset Buddy Female 3.5mm Smartphone Headset to Male RJ9 Telephone Plug Adapter (PH35-RJ9a)

VEC TRX-20 3.5MM Direct Connect Telephone Record Device (ADAPTER ONLY)

Headset Buddy Female 3.5mm OMTP Smartphone Headset to Male RJ9 Cisco Telephone Plug Adapter Cable (PH35-RJ9Cisco)

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