The OREI "Type B" 2 Pack travel adapter has one universal and one non-grounded input socket to connect a plug from almost any country in the world(except the Type M - big S Africa 87mm Plug) including the 2-prong or 3-prong plugs from US. Supported Countries (Output): American Samoa, Anguilla, Aruba, Bahamas, Barbados, Belize, Bermuda, Bonaire, British Virgin Islands, Canada, Cayman Islands, Colombia, Costa Rica, Cuba, Dominican Rep, Ecuador, El Salvador, Guam, Guatemala, Guyana, Haiti, Honduras, Jamaica, Japan, Liberia, Mariana Islands, Marshall Islands, Mexico, Micronesia, Midway Islands, Montserrat, Nicaragua, Palau, Panama, Puerto Rico, Saba, Taiwan (China), Trinidad & Tobago, Turks and Caicos Islands, United States, US virgin Islands, Venezuela, Wake Island