Hands Free Ear Bud: Kyocera QCP-2135 QCP 2135 Handsfree Ear Bud with 2.5 mm jack for cellular phone and cell phones. Handsfree Ear Bud for Kyocera QCP-2135/ QCP 2135 cell-phone and cellular phones. This hands free ear bud combines an ear piece and a microphone built into the same cord. Just plug the cord into the headset jack of your phone, slip the ear bud into your ear and you It comes with a clip which you can use to either attach the microphone to your shirt or let it hang freely.