Samsung SGH-T679DBWTMB - Manual (Page 234)

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metal powders, and any other area where you
would normally be advised to turn off your
vehicle engine.
When your Device is Wet
Do not turn on your device if it is wet. If your
device is already on, turn it off and remove the
battery immediately (if the device will not turn off
or you cannot remove the battery, leave it as-is).
Then, dry the device with a towel and take it to a
service center.
FCC Hearing Aid Compatibility
(HAC) Regulations for Wireless
Devices
The U.S. Federal Communications Commission
(FCC) has established requirements for digital
wireless mobile devices to be compatible with
hearing aids and other assistive hearing devices.
When individuals employing some assistive
hearing devices (hearing aids and cochlear
implants) use wireless mobile devices, they may
detect a buzzing, humming, or whining noise.
Some hearing devices are more immune than
others to this interference noise, and mobile
devices also vary in the amount of interference
they generate.
The wireless telephone industry has developed a
rating system for wireless mobile devices to
assist hearing device users find mobile devices
that may be compatible with their hearing
devices. Not all mobile devices have been rated.
Mobile devices that are rated have the rating on
their box or a label located 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 mobile device successfully.
Trying out the mobile device with your hearing
device is the best way to evaluate it for your
personal needs.
M-Ratings: Wireless mobile devices rated M3 or
M4 meet FCC requirements and are likely to
generate less interference to hearing devices
than mobile devices that are not labeled. M4 is
the better/higher of the two ratings. M-ratings
refer to enabling acoustic coupling with hearing
aids that do not operate in telecoil mode.
T-Ratings: Mobile devices rated T3 or T4 meet
FCC requirements and are likely to generate less
interference to hearing devices than mobile
devices that are not labeled. T4 is the better/
higher of the two ratings. T-ratings refer to
enabling inductive coupling with hearing aids
operating in telecoil mode.
Hearing devices may also be rated. Your hearing
aid manufacturer or hearing health professional
may help you find this rating. Higher ratings
mean that the hearing device is relatively
immune to interference noise.