1, 2600mAh high capacity lithium battery with short circuit protection, anti overcharge protection, anti over discharge protection. 2, intelligent control of output current. 3, charge discharge cycle more than 500 times. 4, intelligent control, microcomputer intelligent monitoring and display power. 5, single key touch control, a touch key press can achieve all function. 6, auto sleep, non working state auto sleep, prevent loss of power. 7, compatible with iPhone, IPAD, PSP, MID, mobile phone, MP3, MP4, GPS and other digital products.