Function the iphone cup holder dock enables your ipodiphone to be conveniently positioned and charged in the cup holder via the cars usb input or supplied car charger adapter audio connection from the cup holder dock to the car audio system is achieved via aux 35mm jack or usb connections product features designed to fit most car cup holders from 76mm to 90mm works with ipod nano 7th generation works with ipod touch 5th generation works with iphone 5