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Implanted medical devices
Manufacturers of medical devices recommend that a minimum separation of 15.3
centimeters (6 inches) should be maintained between a wireless device and an implanted
medical device, such as a pacemaker or implanted cardioverter defibrillator, to avoid
potential interference with the medical device. Persons who have such devices should:
• Always keep the wireless device more than 15.3 centimeters (6 inches) from the medical
device when the wireless device is turned on.
• Not carry the wireless device in a breast pocket.
• Hold the wireless device to the ear opposite the medical device to minimize the potential
for interference.
• Turn the wireless device off immediately if there is any reason to suspect that
interference is taking place.
• Read and follow the directions from the manufacturer of their implanted medical device.
If you have any questions about using your wireless device with an implanted medical
device, consult your health care provider.
■ Vehicles
RF signals may affect improperly installed or inadequately shielded electronic systems in
motor vehicles such as electronic fuel injection systems, electronic antiskid (antilock)
braking systems, electronic speed control systems, and air bag systems. For more
information, check with the manufacturer, or its representative, of your vehicle or any
equipment that has been added.
Only qualified personnel should service the device or install the device in a vehicle. Faulty
installation or service may be dangerous and may invalidate any warranty that may apply to
the device. Check regularly that all wireless device equipment in your vehicle is mounted
and operating properly. Do not store or carry flammable liquids, gases, or explosive materials
in the same compartment as the device, its parts, or enhancements. For vehicles equipped
with an air bag, remember that air bags inflate with great force. Do not place objects,
including installed or portable wireless equipment in the area over the air bag or in the air
bag deployment area. If in-vehicle wireless equipment is improperly installed and the air bag
inflates, serious injury could result.
Using your device while flying in aircraft is prohibited. Switch off your device before
boarding an aircraft. The use of wireless teledevices in an aircraft may be dangerous to the
operation of the aircraft, disrupt the wireless telephone network, and may be illegal.
■ Potentially explosive environments
Switch off your device when in any area with a potentially explosive atmosphere, and obey
all signs and instructions. Potentially explosive atmospheres include areas where you would
normally be advised to turn off your vehicle engine. Sparks in such areas could cause an
explosion or fire resulting in bodily injury or even death. Switch off the device at refueling
points such as near gas pumps at service stations. Observe restrictions on the use of radio
equipment in fuel depots, storage, and distribution areas; chemical plants; or where blasting
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