Portable power pack battery capacity 3 000 mah interfaces usb microusb power output max 21 dimensions 90 9 x 29 8 x 21 1 mm weight 72 g features battery indicator onoff switch included in delivery micro usb cable user manual colour blue output voltage 5 v operating voltage 5 v material plastic special features smart charge green sense compatible smartphones htc one apple iphone 6 sony xperia z1 compact samsung galaxy s4 mini apple iphone 5c sam