The Flip Power - Dual Usb Charger With Powerbank from Oneadaptr is an ideal plug adapter that uses standard mains electricity to charge up to 4 USB devices during regular use of a socket. This adapter is designed to be slim for travel use but can be used as an everyday adapter for your charging needs. The 2x 3.4 Amp USB ports give plenty of power to charge your phone and tablet devices. The slim design of this product is made possible via the folding action this adapter utilizes; when not need, the pins of the adapter fold into the body of the adapter, and with the push of a button, these pins extend out and can be plugged into a standard British socket. This ensures that the pins does not get damaged, or damage other products around it if in a travel bag. This adaptor also acts as a power bank, this means that when it is charging your usb devices it is also charging its internal battery, so when your on the go and your phone or portable device dies, you can connect to this adapt