This is an Ultra High Capacity 10000mah power bank with premium LI-ion polymer battery cells that add which add battery life to your phone, tablet or digital camera. It i enables you to charge up to three devices at once. The output is 2.4A and an input of 2A ,it also has a multi-protection safety system which surge protection ,prevents short circuit and gives advanced safety features to keep you and your device safe. Smartphones are loaded with a lot of mobile applications that are powered by efficient processors for fast operations.