Fortunately, there is something called a plug adapter that you can buy. It attaches to your appliances and allows you to plug it into outlets in foreign countries. But remember that there are six different kinds of plugs used worldwide, so you must be sure to buy the correct one for the country you are visiting.
You may also need a voltage converter , but only if you plan on bringing single-volt electronics with you when you travel. If you bring dual-voltage appliances, a voltage converter is not needed. To find out if your appliances are dual-voltage or single-voltage, find the voltage rating written on them. If it indicates 110v, then it is single-voltage. You need a voltage converter in order to use it in Armenia , because Armenia uses 220v. If it says 110v-220v, it is dual-voltage, and no voltage converter is needed.

Armenia plug adapter
Armenia voltage converter