Portable power pack dual usb charger battery capacity 9 000 mah interfaces microusb usb interace output 2x usb type a power output max 34 dimensions 95 x 68 x 25 mm weight 198 g features battery indicator onoff switch included in delivery user manual micro usb cable output voltage 5 v operating voltage 5 v material metal charging function charges 2 devices simultaneously compatible smartphones apple iphone 6 apple iphone 6 plus apple iphone 6s ap