Hearing Aid Compatibility With Mobile Phones - Motorola MOTOKRZR K1m User Manual

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Hearing Aid Compatibility with Mobile Phones

Some Motorola phones are measured for compatibility with hearing Hearing Aids
aids. If the box for your particular model has "Rated for Hearing Aids"
printed on it, the following explanation applies.
When some mobile phones are used near some hearing devices
(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 noise, and phones also vary in the
amount of interference they generate.
The wireless telephone industry has developed ratings for some of their
mobile phones, to assist hearing device users in finding 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 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.
102 Hearing Aids
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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 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 mobile phones.