This handy Worldwide USB charger allows you to charge 2 USB devices at once, so that you don’t need to carry multiple units. Offering fast and efficient charging in more than 100 countries, use it across the world thanks to its interchangeable US, UK, EU and Australasian plugs.To change the plug heads on this product, locate the 2 pins on the rear of the charging unit, ensure they are in an upright position. Then, with plug head of your choice selected, locate the 2 holes in the plug head and slide onto the pins. Insert into wall socket to use. For use in Australia, China, EU countries, Great Britain, Mexico, New Zealand, Scandinavia and USA. The twin USB ports are suitable for use with USB devices and can charge two devices simultaneously. Not for use in SwitzerlandDoes not provide an earth connection in parts of ItalyInput: 100-240V'50-60Hz MAX. 0.7A Output:1: 5V 2 4A MAX / Output 2: 5V 1A MAX. Total: 5V 3. 4A MAX. This product is for indoor use only. Do not use in a humid environment for an extended amount of time. The unit may get hot with extended use. Check local voltage is compaitble with you electrical product before use. Alternative localised electrical systems may occasionally be found in some countries. Read all the instructions before use