We've traveled a lot, over the years. In doing so, trial and error has led us to some pretty good ideas about some items that are helpful to have when traveling abroad.
Of course, our opinion is free, so don't feel compelled to grab these, but we think it's a good place to start.
Note: This is not a power converter. It will work with any dual voltage appliance, however.
You can tell if something is dual voltage, if somewhere on the appliance it reads something like, "voltage 110/240v".
If it does, you're good. If it only reads, "110v", it will burn out very quickly without an additional power converter.
There are some adaptors that are also power converters, that cost a little more.
Most laptops, tablets, cell phones, flat irons, curling irons, and camera battery chargers ARE dual voltage.