Question

what is the use of a headphone this is not a helicopter ​

Answer 1

Answer:

what is the use of a headphone

• Headphones let a single user listen to an audio source privately, in contrast to a loudspeaker, which emits sound into the open air for anyone nearby to hear. Headphones are also known as ear speakers, earphones or, colloquially, cans.

what is the use of a headphone in helicopter

Helicopter passengers wear headsets to protect their hearing and to be able to speak to one another and the pilot. While in flight the noise levels inside a helicopter can range anywhere from 85db to 110db. The sound exposure maximum limit to prevent damage to hearing is 85db.

i wasn't sure of the question so I answered for the both questions possible....

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