Headset to Male 2.5mm Plug Adapter Convert 4P4C RJ9
Headset Buddy Female Headset to Male 2.5mm Plug Adapter - Convert 4P4C RJ9 to Phone Jack Cable Works with Plantronics, ATT, Cisco, Panasonic, Cordless & VoIP Telephones (RJ9-PH25) Female RJ9/RJ10/RJ22 to Male 2.5mm plug headset adapter Convert your RJ9 Phone Headset to 2.5mm Save money by using your existing headset! Does not work with RJ11 (which is the size of the phone jack in the wall, larger than headset phone jacks) 1 year warranty, 100% Satisfaction Guaranteed!