Product Info

15 16
Hearing Aid Compatibility
FCC Requirements for Hearing Aid Compatibility
with Wireless Devices
When wireless devices are used near hearing
devices (such as hearing aids and cochlear
implants), users may detect a buzzing, humming,
or whining noise. Some hearing devices are
more immune than others to this interference,
and wireless devices also vary in the amount of
interference that they generate.
The wireless telephone industry has developed
ratings to assist hearing device users in finding
wireless devices that may be compatible with
their hearing devices. Not all wireless devices
have been rated. Wireless devices that are rated
will have the rating displayed on the box together
with other relevant approval markings.
The ratings are not guarantees. Results will vary
depending on the user’s hearing device and
hearing loss. If your hearing device is vulnerable
to interference, you may not be able to use a
rated wireless device successfully.
Consulting with your hearing health professional
and testing the wireless device with your hearing
device is the best way to evaluate it for your
personal needs.
This device has been tested and rated for use
with hearing aids for some of the wireless
technologies that the device uses. However,
other wireless technologies may be used in this
device that have not been tested for use with
hearing aids. It is important to try the different
features of your device thoroughly and in
different locations to determine if you hear any
interfering noise when using this device with
your hearing aid or cochlear implant. Consult
your wireless service provider about its return
and exchange policies, and for information about
hearing aid compatibility.
Your 4053S device is M4/T4 compatible.
Reference ANSI C63.19- 2011.
How the ratings work
M-Ratings: Wireless devices rated M3 or
M4 meet FCC requirements and are likely to
generate less interference to hearing devices
than wireless devices that are not labeled. M4 is
the better or higher of the two ratings.
T-Ratings: Wireless devices rated T3 or T4
meet FCC requirements and are likely to be
more usable with a hearing device’s telecoil (“T
Switch” or “Telephone Switch”) than unrated
wireless devices. T4 is the better or higher of the
two ratings. (Note that not all hearing devices
have telecoils in them.)
Hearing devices may also be measured for
immunity to this type of interference. Your
hearing device manufacturer or hearing health
professional may help you find results for your
hearing device. The more immune your hearing
aid is, the less likely you are to experience
interference noise from wireless devices.