VOK Smart Wi-Fi Socket Plug US with Real-Time Energy Monitoring (Type B NEMA-5-15 compatible) can be used in the following countries.

Countries, states and territories that uses Type B (NEMA-5-15) plug socket, power socket, power outlet, electrical socket.
American Samoa, Anguilla, Antigua and Barbuda, Aruba, Azores, Bahamas, Barbados, Belize, Benin, Bermuda, British Virgin Islands, Canada, Cayman Islands, Colombia, Costa Rica, Cuba, Curaçao, Dominican Republic, Ecuador, El Salvador, Guam, Guatemala, Guyana, Haiti, Honduras, Jamaica, Japan, Laos, Liberia, Marshall Islands, Mexico, Micronesia , Montserrat, Nicaragua, Palau, Panama, Peru, Philippines, Puerto Rico, Saba, Saint Vincent and the Grenadines, Sint Eustatius, Sint Maarten, Suriname, Taiwan, Thailand, Trinidad & Tobago, Turks and Caicos Islands, United States of America (USA), Virgin Islands (USA), Venezuela, Vietnam