Electrically powered and Plug-in

Plug-in and electrically powered are semantically related. In some cases you can use "Plug-in" instead an adjective phrase "Electrically powered".

Plug-in noun - A printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities.

Electrically powered and plug-in are semantically related. You can use "Electrically powered" instead an adjective phrase "Plug-in".