The current in Brazil isn't regulated: in São Paulo and Rio it's 110 or 120 volts (the same as in the United States and Canada); in Recife and Brasília it's 220 volts (the same as in Europe); and in Manaus and Salvador it's 127 volts. Electricity is AC (alternating current) at 60 Hz, similar to that in Europe. To use electric-powered equipment purchased in the United States or Canada, it’s wise to bring a converter and adapter, although these days, increasingly, most electronics are designed to convert themselves—if your device specifies a range of 100 to 240 volts, you won’t have any problem using it in Brazil. Wall outlets take Continental-type plugs, with two or three round prongs, although you may come across older outlets that take two-pronged flat plugs. Consider buying a universal adapter, which has several types of plugs in one handy unit. Some hotels are equipped to handle various types of plugs and electrical devices.