Function The iPhone Cup Holder Dock enables your iPod/iPhone to be conveniently positioned & charged in the cup holder via the car's USB (Universal Serial Bus) input or supplied Car Charger Adapter. Audio connection from the Cup Holder Dock to the car audio system is achieved via Aux 3.5mm Jack or USB (Universal Serial Bus) 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