Microphone on hearing aid. Close-up of an air con- ductor hearing aid,showing the tiny microphone (centre) and sound-conducting tube (right). This hearing aid is designed to fit on top of the ear. The transparent sound-conducting tube runs into the ear canal. Hearing aids improve hearing in people with partial deafness. Sound is picked up by a tiny microphone,amplified,and then transmitted into the ear by a tiny speaker. Each hearing aid is fine-tuned to amplify the range of frequencies most needed by the patient | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Shemilt, Jane |
Taille de l’image : | 3549 px × 2475 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |