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 userwith normal use while using the hearing aid with the particularwireless mobile device. A sum of M6 or more would indicate excellent performance.
However, these are not guarantees that all users will be satisfied.
M3 | + | M2 | = 5 | T3 | + | T2 | = 5 |
The HAC rating and measurement procedure are described in the American National Standards Institute (ANSI) C63.19 standard.
HAC for Newer Technologies
This device 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 device that have not been tested yet for use with hearing aids.
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