A CD player and a radio player are both devices used to play audio recordings. A CD player is a device that uses compact discs to play back music. A radio player is a device that uses radio waves to play back music and other audio content.

CD players were first introduced in 1982 and were widely used until the advent of the MP3 player in the late 1990s. They are still used today, though they are becoming less common as MP3 players become more popular. CD players typically have a digital display that shows the track number, time, and …