Electricity is used to power most things like a phone,computer,and a tv
Electricity can power a whole house
Have you ever seen Iron man? His suit uses a lot of circuits.
a phone has a lot of programs and circuits also
when ever you are in your car do you ever pass electricity towers?Those let electricity go to your house to power all things like charging your phone,watching tv,or playing on your xbox.
some smart cars are programed with its circuits.
these haves circuits inside.
I am sure as the picture tells us its a radio.