K2R-803 Portable Power Bank , It is a 7,800mAh battery and it has a 1 amp and 2 amp for charging things like your tablet or cell phone for example. There is a middle for charging the K2r Technology and when using this ,the cable lights up orange or blue when it is orange it is showing that what ever you are charging isn't charged yet when it is blue your item is now charge . This K2r Technology takes 10 hours to charge completely . I just plug mine in at night before going to bed and in the morning it was fully charged in the morning when I get up. I also like that it comes not one but two different cables with it. One is A Apple product and other one is Cross plat form for Androids devices and other devices. It also comes with a flash light built in which is very handy to have. It is very compact portable power bank and is very small and able to fit into a purse or a pocket. I highly recommend getting one. I have charged my tablet two times this week and it is still charged. You have 4 lights on bottom of it to tell you if it is all the way charged as well.