Features 3000mah high capacity battery pack intergrated ligntning cable 1a output or 5v 21a usb or dual 5v 1a lightning and 12a usb lightweight 87g and just 10mm thin over discharging excessive current and short circuit protection 4 led indicator with shake to check functiion patented design in built lightining cable for iphone 5 ipod touch 5th generation ipod nano 7th generation mfi approved by apple 21 amp usb output