... and single mini USB outputPowerful with long operation timeHigh efficiency of power conversionIncludes 8 adapters for most cell phonesComes ... power cableSleek and elegant profile, compact for easy carryingSpecifications: Battery capacity: 5,000mAh (theoretically 5,000mAh, actually 4,000mAh ... x adapters 5,000mAh USB Output Power Bank/Portable External Battery Pack for iPad/iPhone/Nokia/MP3/USB Device