Brazil runs on 127V/220V (varies by state) mains power with Type N style outlets.
Most modern phone, laptop, and USB chargers auto-switch across the 100-240V range, so a simple plug shape adapter is typically all that’s needed — check the fine print on the charger’s label to confirm before traveling.
What to pack
A plug adapter for Type N outlets covers virtually all modern portable electronics without needing a bulkier voltage converter.