|
 |
 |
Case
 |
In a classification of these, the first criterion is position with respect to the auricle, all-important from an aesthetic standpoint, whereas the other criterion concerns the internal technology. |
Hearing-aids with case are only used for very serious hearing problems requiring high amplification. They consist of a case containing all the electronic circuits which, through a connection cable, transmit the sound to a earpiece specially made to transmit such high outputs |
