Samsung GALAXY S 5 Important Information Manual page 17

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.
Important Health, Safety and Warranty Information
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.
However, these are not guarantees that
all users will be satisfied. T ratings
work similarly.
17