When traveling to the United Kingdom, England, Northern Ireland, you will need the UK style charger. When traveling to Continental Europe such as Germany, France, Belgium, you will want the European style charger.
Internal Safety Features: The internal circuit is especially designed to add protection against acute power loss or power overloads. The design allows for a stable and secure supply of power (even when charging from both USB ports), which may also help extend battery life. Buit in fail-safe and back up circuits support other safety features which include over charging detection, electrical surge and short circuit breakers, as well as temperature control capabilities.
Compatible Products: Apple®: iPhone® 3 / 3GS / 4 / 4S / iPod Nano® 1st / 2nd / 3rd / 4th / 5th / 6th gen / iPod Touch® 1st / 2nd gen / 4G / iPod Classic® 80 / 120 / 160GB. Micro USB: HTC One X® One XL / One S / Samsung Galaxy® S / S II / S III / Sony Ericsson® Xperia arc / X8 / S / XS / Mint / J-lo / Motorola Atrix® Defy / Dext / Milestone 1 / 2 / 3 / Razr Max / Razr Maxx / BlackBerry® 8520 / 8900 / 9300 / 9700 / 9780 / 9800. IMPORTANT: NOT FOR USE WITH SAMSUNG GALAXY TAB.