User's Manual

Table Of Contents
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.
The HAC rating and measurement procedure are described in the
American National Standards Institute (ANSI) C63.19 standard.
M3 M3