About the product 1. External battery and case for your phone
2. An emergency backup battery used to charge your phone anytime and anywhere
3. Also can be used as a protective back case to prevent your phone from daily damages
4. Convenient, easy to use, high capacity
5. Use the USB cable to charge and sync
6. 4 LED indicators
7. Integrated circuit design, effectively avoid short circuit or overcharging
8. With smart switching and precise power display, helps to extend the life of the built-in battery