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Hearing Aid Compatibility with Mobile Phones
Some Motorola phones are measured for compatibility with
Hearing Aids
hearing 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.
• 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 imune your hearing aid is, the less likely you
are to experience interference noise from mobile phones.
Hearing Aids
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