Great protection against dust, water and any kind of shocks. A garantee of security, with the new battery 5000mA and the Printed Circuit Board Assembly you can use the high performance ID (integrated circuit). This product can be used with a big variety of products like iPhone, iPad, PSP photo-camera, etc. An indicator display the level of the charge of the battery (20%, 40%, 60%, 80%, 100%). Double port USB 5V 1A: (the first), 5V 2A (the second).