Hearing aids. Artwork showing different types of hearing aid. Clockwise from top left these are; body worn,behind the ear,in the ear and in the ear canal types. Hearing aids improve hearing in people with partial deafness. Sound is picked up by a microphone,amplified and transmitted into the ear by speakers. Each aid is fine-tuned to amplify the range of frequencies most needed by the patient | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Gardiner, Peter |
Taille de l’image : | 4016 px × 4382 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |