Portable power supply (mini) can charge with ipod,Mobile phone,PSP,GPS,MP4/MP3 at anywhere in anytime ... time:4Hours 8,Not fit for ipod nano G39,High capacity Mobile Power, can charge with ipod,Mobile phone,PSP,GPS,MP4/MP3 ... charging this portable power) Wide compatible, Applications: Mobile phone, and MP3/MP4, PDA, PSP, iphone, And ipad, iPod, ,camera and so on ...