Griffin iTrip Universal FM Transmitter and Car Charger connects to iPhone, iPod, Smartphone and many other devices Works with any portable audio device that has a standard 1/8\" (3.5 mm) headphone jack SmartScan finds the best open frequency for you with the press of a button Simple 3-step setup Charges your device with the built-in USB port using your own cable Total Cable length: 3.6' (1.10 m) Plugs into any 12V accessory socket