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Safety information
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 + M2 = 5
T3 + T2 = 5
The HAC rating and measurement procedure are
described in the American National Standards Institute
(ANSI) C63.19 standard.