This is Compatible Product for :  iPhone 6 4.7” -There is no setup or configuration, just plug & play.  -Just plug the slender Microphone 3.5mm Audio adapter to your iPhone 6 and plug the 3.5mm stereo connector into your car’s AUX-IN audio jack.  Then listen to your iPhone music through your car stereo speaker.   -When incoming call pauses the music, then push the button to answer call,  the microphone picks up your voice loud and clear.  When finishing call, just push the button again, then music will go on.  With this cable adapter, you can always keep your hands free and eyes on the road.   -Note : This cable also can connect to ALL iPad and iPod to play music through your car speaker.