Just Mobile Gum Plus is a stylish portable backup battery for iPod, iPhone, iPad and USB-powered devices. Unlike most backup batteries, the Gum Plus high-power USB output is enough to charge an iPhone to 90% in just one hour. And because it can store up to 4400mAh of power, the Gum Plus will recharge the iPhone up to four times before needing more juice. With its rounded aluminum case and ?ve LED power indicators, the award-winning Gum Plus is a truly stylish way to pack a power up. Do not leave home without it.