My grandfather still uses an old transistor radio.

He is operating a radio-controlled helicopter.

There is an old radio cassette in my room.

What is this pipe used for?

This pipe is for carrying water.

There is a new clock radio in my room.

The car radio in my car has broken.

I want to go to Mongolia.

Are you really not going to use this unused laptop?

He is the most competent employee of our company.