Hello Anker, first of all Thanks a ton for being part of our everyday lives. you have added so much quality to my gadgets. I have been using anker past 4 years, starting with charging cable ( power line+ micro usb), powercore mini 3350mah, (lipstick), power core 10000 mah, and the little awesome dynamite sound core mini bluetooth speaker (my favorite), even my iphone screen protector ( Glass guard ), oh not to forget, my iPad folio keyboard case, you are just amazing. always exceeded my expectations, and your customer service is the best i must say. God bless.