fashion and small design for any ages use,easy to go and to use. made from high capasity of battery in good material quality. Model iPower4400Specifications :-Input/output = 5v-Input/output = 1000mAh-Battery = high capasty of lion battery-Display =Blue light on is charging,red light on is full-Battery display= ≤25%,25%-50%, 50%-75%,75%-100%-Battery capacity = 4400mAh-Rechargable = more than 500 ...