Home » Hearing Aid by Jesse Russell
Hearing Aid Jesse Russell

Hearing Aid

Jesse Russell

Published May 12th 2012
ISBN : 9785512780862
Paperback
158 pages
Enter the sum

 About the Book 

High Quality Content by WIKIPEDIA articles! A hearing aid is an electroacoustic device which typically fits in or behind the wearers ear, and is designed to amplify and modulate sound for the wearer. Earlier devices, known as ear trumpets or earMoreHigh Quality Content by WIKIPEDIA articles! A hearing aid is an electroacoustic device which typically fits in or behind the wearers ear, and is designed to amplify and modulate sound for the wearer. Earlier devices, known as ear trumpets or ear horns, were passive funnel-like amplification cones designed to gather sound energy and direct it into the ear canal. Similar devices include the bone anchored hearing aid, and cochlear implant.