SuperWhole Headset Cable 2 X 3.5mm to RJ9 Jack Adapter Convertor PC Headset Telephone Using 100% brand new.Connector A: 2* 3.5mm female Connector B: RJ9.Length:25cm Get this headset adaptor then you can use your favorite computer analog headphone to chat on telephone. NEW Dual 3.5mm audio female socket to RJ9 Modular Plug Adapter Cable for connecting your own Analog Computer Headset with Dual 3.5mm Audio plugs to Your own Cisco phone headset jack with RJ9 modular socket