Listener (noun)

1. A person who is listening to something, especially a speech, lecture, or conversation.
2. A person who listens to a particular type of music or radio program.

Origin:

Late middle english: from old french liste "ear", from latin lista "border, edge", influenced by listen.

Examples:

1. The speaker paused to allow the listeners to ask questions.
2. The listeners were all very engaged in the talk.
3. She was an attentive listener.
4. He is a regular listener of classical music radio station.
5. The listener may call in to participate in a contest.