Built in lithium polymer battery. Complete with one universal cable that fits iPhone 5, iPhone 6, HTC, Blackberry and Samsung Galaxy moblie phones, as well as iPads, Kindles, Sat Navs, Cameras and many other devices. This product will also allow you to use your device while charging and has a built in high powered torch that has an SOS flash function, strobe function or can simply be used as a standard torch.