ITEM NAME:Headset Extension AUX Cable 3.5mm Audio Auxiliary Stereo Male to Dual Female img *{margin:0;padding:0;.You must first connect the headset and microphone to the adapter cable, and then plug the adapter cable into the phone's headset Jack. - Combo Audio Adaptor: 2 x 3.5mm female jack plug to 1 x 3.5mm male jack plug.