User Manual

Hearing devices may also be rated. Your hearing aid manufacturer or hearing health professional
may help you find this rating. Higher ratings mean 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 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.
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.
It is important to try the different features of this device thoroughly and in different locations, using
your hearing aid or cochlear implant, to determine if you hear any interfering noise. Consult your
service provider or the manufacturer of this device for information on hearing aid compatibility. If you
have questions about return or exchange policies, consult your service provider or device retailer.