... 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 ... once every 3 months if easy-power won't be used for a long time.3.Please keep the dry ... which the voltage is 5V, such as: ipad, iphone3G, 4G, mobile phones, MP3, MP4, PSP, etc Portable power 4800mAh compatible with mobile phone and ipad