User's Manual
10 Safety and regulatory guide
Some hearing devices are more immune than others to this
interference noise, and phones also vary in the amount of
interference they generate. The wireless telephone industry has
developed a rating system for wireless phones, to assist hearing
device users find phones that may be compatible with their
hearing devices. Not all phones have been rated. Phones that are
rated have the rating on their box or a label located on the box.
The ratings are not guarantees. Results will vary depending on the
user’s hearing device and hearing loss. If your hearing device
happens to be vulnerable to interference, you may not be able to
use a rated phone successfully. Trying out the phone with your
hearing device is the best way to evaluate it for your personal
needs.
M-Ratings: Phones rated M3 or M4 meet FCC requirements and
are likely to generate less interference to hearing devices than
phones that are not rated. M4 is the better/higher of the two
ratings.
PL80110
is rated M4.
T-Ratings: Phones rated T3 or T4meet FCC requirements and are
likely to be more usable with a hearing aid’s telecoil than phones
that are not rated. T4 is the better/higher of the two ratings. Your
PL80110
is rated T3.
Please power off the Bluetooth function while using hearing aid
devices with your
PL80110
.
Hearing devices may also be rated.
Your hearing device manufacturer or
hearing health professional may help
you find this rating. Higher ratings
mean that the hearing device is
relatively immune to interference
noise.
The hearing aid and wireless phone rating values are then added
together. A sum of 5 is considered acceptable for normal use. A
sum of 6 is considered for better use. A sum of 8is considered for
best use. In the above example, if a hearing aid meets the M2 level
rating and the wireless phone meets the M3 level rating, the sum of
the two values equal M5. This should provide the hearing aid user
with “normal usage” while using their hearing aid with the
particular wireless phone. “Normal usage” in this context is defined
as a signal quality that is acceptable for normal operation.
This methodology applies equally for T ratings. The M mark is
intended to be synonymous with the U mark. The T mark is