What is it? Why do I need it? How does it work?...
Well basically it is a plug which charges you device by using a USB cable. Check your devices user manual to see if your device charges by USB. If it does then this USB charging plug will work.
These plugs are excellent for charging your device wherever you are in the world. They're compact and very easy to set up
The USB charging plug is made up of 2 pieces. The main unit and the plug. Simply select which plug you need at the time (depends which country you're in) and slide it on to the back of the main unit. Then plug the usb cable into the bottom of the main unit and you're ready to go