My grandfather still uses an old transistor radio.

The use of this machine is simple.

This radio uses a transistor.

This radio uses a transistor.

It's my habit to listen to the news on the radio every morning.

This computer can be used by anyone.

There is an old radio cassette in my room.

He is operating a radio-controlled helicopter.

The car radio in my car has broken.

There is a new clock radio in my room.