... accept OEM/ODM 4.External Power Bank for Apple iPhone, iPod universal portable power bank for business,tourism,travel speifications:* ... mAh *Coluor: Black/Blue/Red/Silver/Coffee * Power conversion efficiency≥ 88% 1.Size:97*43*22mm ... of communicate and digital devices like mobiles, iPhone,iPad,iPod,PDA,MP3,MP4,PSP,GPS ... and 70% before shipping) OEM portable power bank for iphone, samsung glaxy note etc