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Health and Safety
184 Health and Safety
device and hearing loss. If your hearing device happens to be vulnerable to
interference, you may not be able to use a rated mobile device successfully.
Trying out the mobile device with your hearing device is the best way to evaluate
it for your personal needs.
M-Ratings: Wireless mobile devices rated M3 or M4 meet FCC requirements and
are likely to generate less interference to hearing devices than mobile devices
that are not labeled. M4 is the better/higher of the two ratings. M-ratings refer
to enabling acoustic coupling with hearing aids that do not operate in telecoil
mode.
T-Ratings: Mobile devices rated T3 or T4 meet FCC requirements and are likely to
generate less interference to hearing devices than mobile devices that are not
labeled. T4 is the better/higher of the two ratings. T-ratings refer to enabling
inductive coupling with hearing aids operating in telecoil mode.
Hearing devices may also be rated. Your hearing aid manufacturer or hearing
healthprofessionalmayhelpyoundthisrating.Higherratingsmeanthatthe
hearing device is relatively immune to interference noise.
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