The JustMobile Gum Pro Portable USB Power Pack is the big brother of the JustMobile GUM Portable USB Power Pack with even much more Power for your mobile devices. With its 4400mAh capacity, it extends the term of use for almost all mobile devices up to the fivefold (depending on the power consumption and capacity of your device's internal battery). Thanks to it's compact size, the external battery JustMobile Gum Pro goes even into the smallest pocket. Home again, it can be charged at an USB-Port from your PC or with an optional travel charger.

Double cigarette lighter adapter for charging two devices from a single cigarette lighter socket at the same time.