Dual 35mm Audio Cable Adapter Converter with RJ9 RJ10 Connector for VoIP Phones
Connector 1: RJ9, RJ10, and RJ22 male connector. 1 double 3.5mm to RJ9 headphone converter. Connector 2:2x3.5mm female head. Convert two 3.5mm jacks into a single 4P4C RJ9/RJ10 headphone, you can use your own headphone to chat over this cable.