This is a great power bank... it has a variety of inputs and outputs including USB C and micro USB. It has a large capacity and a fairly compact size. It's just slightly smaller than a glasses case. There are tiny unobtrusive lights on the front which tell you how much charge remains. The only small complaint is that it is very heavy. OK for a purse or backpack but probably not for your clothing pockets. However this is why it has so much capacity, so it is really the best compromise. Would be great on a trip when charging stations not guaranteed.