... ,MP4/MP3,PDA PSP MID,mobile phone etc. Product: Power bank Specificationspower bank Capacity:4000MAH Battery cell:polymer For:ipad ... ,MP4/MP3,PDA PSP MID,mobile phone etc. Product: Power bank Specification: 1, Dual USB output2,High Efficiency of ... Portable and convenient for outdoor products as a accessory6,Environmental protection Economic Efficiency7,Long cycle life 8,weight--99g9,size:101x50x14mm ...