Promate iCharge.U is the world's first All in One Multi-region, Multi Input and output charging kit with Built in Backup Battery. Simply the world's most convenient charger. Designed to charge even when away from the power source thanks to a built in battery. Charge around the world with 4 Multi-regional plugs and a car charger. Equipped with a USB charging port compatible with all Mobile Phones, BlackBerry, PDA's, iPod/iPhone, MP3/MP4 players and all other portable devices that charges via USB. Charge on the move thanks to iCharge.U built-in 1000 mAh lithium-ion battery that charges any time you plug the iCharge.U in power and stores the power for later use without the need for a power source. iCharge.U uses an advanced voltage regulator technology and interchangeable power adapters to safely charge all of your mobile and media devices anywhere and anyway.