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Important Health, Safety, and Warranty Information 19
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.