Samsung Galaxy S 5 Important Information Manual page 17

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.
Important Health, Safety and Warranty Information
However, these are not guarantees that
all users will be satisfied. T ratings
work similarly.
M3 + M2 =
T3 + T2 =
5
5
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