Built-in battery cells with high efficiency, large capacity and long life

Pocket friendly size for easy to carry around

Supports pass through charging so you can charge both your charger and the devices simultaneously

Double protection design one for battery, one for overcharge current protection and short circuit protection

Intelligent display of LED to indicate the charging status and power level

Suitable for most digital devices with DC 5v input such as tablets PC, smart phone, iPhone, iPod, mp3, mp4, GPS, PSP Etc