Hearing loss occur with age, prolong exposure to loud sound or some other reasons. People wear hearing aid which produce loud sound in ear, if sound is normal in environment. Hearing aid is a battery operated device. Location, movement of body, audio transfer and many more features can stay in hearing aid without the knowledge of people.
Nalanda2029
Nalanda MP
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Ravi Ranjan Sinha,
Politician,
Asthawan, Nalanda, India
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