1. Built in-high-capacity Li-ion polymer battery,  different capacity , to make sure 500 times above charging cycle .
2. One USB output socket, can also charge iPhone, iPad, mobile phones(like Nokia, Blackbery, Moto, Samsung, Sony Eriksson etc), digital products .
3. High standard safety protection design, including discharger, overload, short-circuit, lighting protection function .
4. Intelligent hand control on-off switch to prevent extra power consumption.

5.Highly efficient conversation rate.

6.High quality battery to make sure over 500 times charging times.

7. Intelligent MCU controller, monitoring various operating status.

8. All function are operated by one intelligent hand off/on switch button.

9.Small size, light weight and portable.