Voltage and plugs

Rio is 110 V (other cities may be 220, check it out) and outlet shapes are weird... either Flat blade plug or Two round pins. So, computer's 3 pins one will NOT work in Brazil, but if you have something that will make it two flat blade, then it should be fine in most of the places, after using a bit of brute force :0) The flats are really flat and the American flats are uneven... Some older houses will have only round ones, then you will need an adapter. Google is great, here is an image of the plugs: http://www.deltatranslator.com/two-prong.jpg