Question

few lines about Microphone​

Answer 1

Explanation:

Micro phone is to listen voice of school online class or something else

Answer 2

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A microphone mostly called as mic is a device – a transducer – that converts sound into an electrical signal. Microphones are used in many applications such as telephones, hearing aids, public address systems for concert halls and public events, megaphones, radio and television broadcasting. They are very useful.

Hope this helps you!