USB charging device offers a convenient way to provide power to a wide array of portable and mobile devices. The charger converts your vehicle’s conventional 12V power outlet to a fixed 5V high-current USB charging port. Simply insert the BMW USB charger into your vehicles power outlet. The green LED indicator provides visual identification that the device is active, and can then be connected to all USB-supported charging cables. The high-loading current of 1,200 mA allows charging for smartphones, MP3 players, all Apple iPods, iPhones and iPad’s as well as most other portable devices.