Correct Answer: Microphone

Solution : The correct answer is Microphone.

Microphone is a device which is used to record audio and music. It works by converting sound waves into electric signals. It was invented by Emile Berliner in 1877. Later it became the part of telephones invented by Graham Bell which made the long distance communication possible. A microphone records the sound vibrations and translates them into electronic signals which are transmitted over signal or recorded for its future use.