Zte Blade A3 Prime User Manual page 136

are rated have the rating on their box or a label located on the box.
These ratings are not guaranteed. Results will vary, depending on the
level of immunity of your hearing device and the degree of your
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.
This phone 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 phone that have
not been tested yet for use with hearing aids. It is important to try
the different features of this phone 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 phone for information on hearing aid
compatibility. If you have questions about return or exchange
policies, consult your service provider or phone retailer.
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 be more usable with a hearing device's telecoil ("T Switch" or
"Telephone Switch") than unrated phones. T4 is the better/ higher of
the two ratings. (Note that not all hearing devices contain telecoils.)
Your phone has been tested for hearing aid device compatibility and
has an M4/T4 rating.
Hearing devices may also be measured for immunity to this type of
interference. Your hearing device manufacturer or hearing health
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