Question

When do we use CROS - Contralateral Routing of Signal?

a) When both ears have equal hearing loss
b) When one ear has profound hearing loss and the other ear has good hearing
c) When both ears have normal hearing
d) Not mentioned

Answer 1

CROS hearing aids are used when one ear has profound hearing loss and the other ear has good hearing, transferring sound from the poorer ear to the better one.

Step-by-step explanation:

Contralateral Routing of Signal (CROS) hearing aids are used when one ear has a profound hearing loss and the other ear has good hearing. This kind of hearing aid takes sound from the side with poor hearing and transmits it to the ear with better hearing.

For example, if the right ear has a profound hearing loss and the left ear has normal hearing, a CROS hearing aid worn on the right ear would pick up sound from the right side and wirelessly send it to the left ear, allowing the person to hear sounds coming from their right side.