LG nexus5 Quick Start Manual page 11

The wireless telephone industry has developed a rating system
for wireless phones, to assist hearing device users to fi nd
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 vary depending on your
hearing device and degree of hearing loss. If your hearing device
is 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.
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 labeled. M4 is the better/higher of the two
ratings.
T-Ratings: Phones rated T3 or T4 meet FCC requirements and
are likely to generate less interference to hearing devices than
phones that are not labeled. T4 is the better/ higher of the two
ratings.
Hearing devices may also be rated. Your hearing device
manufacturer or hearing health professional may help you
fi nd 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 acceptable 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
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