LG Vortex User Manual page 283

Persons with pacemakers:
Should ALWAYS keep the phone more than six (6) inches from
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their pacemaker when the phone is turned ON;
Should not carry the phone in a breast pocket;
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Should use the ear opposite the pacemaker to minimize the
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potential for interference;
Should turn the phone OFF immediately if there is any reason to
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suspect that interference is taking place.
Hearing Aids
Some digital wireless phones may interfere with some hearing aids.
In the event of such interference, you may want to consult your
service provider (or call the customer service line to discuss
alternatives).
Other Medical Devices
If you use any other personal medical device, consult the
manufacturer of your device to determine if it is adequately shielded
from external RF energy. Your physician may be able to assist you in
obtaining this information.
Health Care Facilities
Turn your phone OFF in health care facilities when any regulations
posted in these areas instruct you to do so. Hospitals or health care
facilities may use equipment that could be sensitive to external RF
energy.
Vehicles
RF signals may affect improperly installed or inadequately shielded
electronic systems in motor vehicles. Check with the manufacturer
or its representative regarding your vehicle. You should also consult
the manufacturer of any equipment that has been added to your
vehicle.
Safety
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