Portable power bank
1. Built in-high-capacity 18650 battery, 4200mAh, to make sure 500 times above charging cycle
2. Two USB output socket, can also charge iPhone, iPad, mobile phones(like Nokia, Blackbery, Moto, Samsung, Sony Eriksson etc), digital products charging, etc.
3. High standard safety protection design, including discharger, overload, short-circuit, lighting protection function
4. Beatiful appearance,four type of colors are avalible