'Sound amplify devices designed' presentation slideshows

Hearing aid

Hearing aids is the sound-amplify devices designed to the aid people to who have of a hearing impairment.The Most hearing aids to the share several of similar electronic components, including a microphone to that the picks up the sound; amplifier circuitry to that makes the sound louder and the miniature loudspeaker (receiver) that the delivers to the amplified sound to the ear canal and batteries that of power the electronic parts

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