Just Mobile Gum Plus packs an impressive 4400 mAh of power and 1000mA of output, that can charge an iPhone up to 4 times and juice up the iPhone to 90% in just an hour. With Just Mobile Gum Plus, the users can enjoy more music, more video, more talk, more games, and more internet on their iPhone. It also works for an iPod, Smartphone and other USB-powered device.