Derry is a Universal World Travel Adapter with a detachable 5000mAh Powerbank. The adapter has 2 USB outputs to charge 2 devices simultaneously & is compatible with over 150 countries with US/EU/UK/ AUS plugs. Just push the knob of the plug you want to charge & your device will charge safely in almost any part of the world. Attached to the Universal travel adapter is a 5000mAh detachable Powerbank which is equipped with high density Li-Polymer battery that safely charges almost any of your electronic devices very quickly. Input /Output : 5V/2A.