The hearing aid makes some equipment (battery, amplifier, speaker, microphone).Microphone- that pick up the sound reach the amplifier the amplifier makes sound loudly and receiver is receiving the sound. For more details visit this link https://www.hearingsol.com/help/hearing-aids/
A hearing aid is electronic device you can wear in or behind your ear.It makes battery operated device,amplifier,sound,microchip etc that a hearing loss person can listen and communicate easily.
Three basic part of hearing aid .
Two types of hearing aid technology.
Some hearing aids have been discussed in further slides
(BTE) hearing aids include a hard plastic case worn in the back of the ear and connected to a plastic earmold that suits within the outer ear. The electronic elements are held in the case at the back of the ear.
This makes it simpler to listen conversations over the smartphone.ITE aids usually are not worn by young children because the casings need to get replaced regularly because the ear grows.
ITC medium size makes them easy to choice push button controls. ITC hearing aids easily fit in the ear canal, smooth insertion and removal, and longer battery life. They work best for mild-to-moderate hearing loss.