... ion polymer battery 4800mah 2,500 times above charging cycle 3,2 USB output socket Portable power 4800mAh compatible with mobile phone ... for nearly all kinds of mobile phones and digital products which have USB cable connector.2.Providing several different charger adaptors ... .Compatible with each kind of mobile phone and digital products with USB function,eg.iPhone, iPad,PDA,MP3,MPS4,PSP,GPS ...