Samsung SM-G900AZKZAIO - Manual (Page 15)

Health and Safety Information 8
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.
Under the standard, this should provide the hearing aid
user with normal use while using the hearing aid with the
particular wireless mobile device. A sum of 6 or more
would indicate excellent performance.