All-in-one adapter, charger and converter set fits electrical outlets in most countries (exceptions are South Africa and some remote locations). Compact international adapter plugs and a built-in converter changes 220V foreign electricity to 110/120 volts for 2 and 3-pronged U.S. appliances. Includes a 1A USB power port with LED and AC indicator lights to keep cell phones charged and ready. Built-in surge protector keeps electrical appliances safe from spikes in foreign electricity. Easy to follow instructions included, not recommended for high end appliances over 1875 watts or electronics exceeding 50 watts (check appliance power specifications).