BoxWave Universal to American Outlet Plug Adapter Black &ndash; Plug Outlet Adapter to America - Great for Traveling! Converts plugs from any country into a two prong US plug One multi-country two prong outlet plug adapter Lightweight and compact, perfect for travelers Designed for use with the Wall Charger or VersaCharger PRO When used with the VersaCharger PRO, the power outlet voltage must range between 100 to 220 volts AC