A big problem in Burma is a lack of power. Some hotels have generators, but in general you can expect frequent power outages all over the country.
What you won’t need though is a travel adapter. I’ve never seen plugs like this before.
From top left going clockwise, I can plug in North American or European plugs, UK plugs, and Australian plugs. They pretty much have everything covered here.
In some places you see a mixture of sockets, with UK bring one of the more common ones.