Samsung Galaxy GRAND Prime Important Information Manual page 18

devices that are rated have the rating on
their box or a label located on the box.
The ratings are not guarantees. Results
will vary depending on the user's hearing
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 health
professional may help you find this rating.
Higher ratings mean that the hearing
device is relatively immune to interference
noise.
Under the current industry standard,
American National Standards Institute
(ANSI) C63.19, the hearing aid and wireless
mobile device rating values are added
together to indicate how usable they are
together. For example, if a hearing aid
meets the M2 level rating and the wireless
mobile device meets the M3 level rating,
the sum of the two values equals M5.
18 Important Health, Safety, and Warranty Information