Application:1.Bluetooth,Mp3,Mp4,Gps,E-book,Notebook,DVD,Ipad, Net book,Notebook,PPC,Mobile PC Laptops,2.Tablet PC,PDA,bank card, smart card,Tablet personal computer,flat computer,Telephones,3.Cameras,Romote control helicopters,Electronic toys,Mp5, ,electronic pen,point reading pen,4.mobile power,electronic cigarette , etc3.7V Batteries , ..