Samsung Galaxy S4 User Manual page 435

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.
M3 M3 M3
T3 T3 T3
The HAC rating and measurement procedure are described in the
American National Standards Institute (ANSI) C63.19 standard.
HAC for Newer Technologies
This phone has been tested and rated for use with hearing aids for
some of the wireless technologies that it uses. However, there may
be some newer wireless technologies used in this phone that have
not been tested yet for use with hearing aids.
It is important to try the different features of this phone thoroughly
and in different locations, using your hearing aid or cochlear implant,
to determine if you hear any interfering noise. Consult your service
+ + + M2 M2 M2 = = = 5 5 5
+ + + T2 T2 T2 = = = 5 5 5
Health and Safety Information 428