Samsung SEPM500BKASPR - Manual (Page 243)

Section 4A: Important Safety Information 219
Impor
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t Saf
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ty Inf
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rma
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Using Your Phone With a Hearing Aid
Device
Your Sprint Nextel phone has been tested for hearing aid
device compatibility. When some wireless 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 have
been rated have a label located on the box.
Your Sprint PCS Vision® m500 by has an M4 rating and T3
rating.
These ratings are not guarantees. Results will vary
depending on the level of immunity of your hearing device
and 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.
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.