PowerTRC All-in-one Universal Travel Adapter Plug with Surge Protector and USB Port Offers surge protection on both 110 (North America) and 220V (International) power. Has USB port. Also works on ungrounded outlets -- important in developing countries. Universal input -- accepts non-grounded or grounded North American plugs, as well as British, European, and most others. Electrical adapters are built in so you don't need separate adapters for most countries, including all of Europe, China, Australia, and most others. Very small and lightweight. Safety shutters. New model accepts polarized plugs.