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Describe the term Hearing AID

Explain briefly the term Hearing AID? Also state its working in brief.

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The hearing aid is an electronic battery device which amplifies and change sound to permit for enhanced communication.

Hearing aid obtains sound via a tiny microphone which then transforms the sound waves to the electrical signal. The amplifier raises the loudness of signals and then sends the sound to ear via a speaker in an earpiece which fits to an outer ear canal. The electrical signals are transformed back to the sound waves.

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