A d d i t i o n a l s a f e t y i n f o r m a t i o n105recommendations of Wireless Technology Research. Persons with pacemakersshould do the following:• Always keep the device more than 15.3 centimeters (6 inches) from thepacemaker• Not carry the device in a breast pocket• Hold the device to the ear opposite the pacemaker to minimize thepotential for interference.If you suspect interference, switch off your device, and move the device away.Hearing aidsSome digital wireless devices may interfere with some hearing aids. Ifinterference occurs, consult your service provider.■ VehiclesRF signals may affect improperly installed or inadequately shielded electronicsystems in motor vehicles such as electronic fuel injection systems, electronicantiskid (antilock) braking systems, electronic speed control systems, and airbag systems. For more information, check with the manufacturer or itsrepresentative of your vehicle or any equipment that has been added.Only qualified personnel should service the device, or install the device in avehicle. Faulty installation or service may be dangerous and may invalidateany warranty that may apply to the device. Check regularly that all wirelessdevice equipment in your vehicle is mounted and operating properly. Do notstore or carry flammable liquids, gases, or explosive materials in the samecompartment as the device, its parts, or enhancements. For vehicles equippedwith an air bag, remember that air bags inflate with great force. Do not placeobjects, including installed or portable wireless equipment in the area over theair bag or in the air bag deployment area. If in-vehicle wireless equipment isimproperly installed and the air bag inflates, serious injury could result.Using your device while flying in aircraft is prohibited. Switch off your devicebefore boarding an aircraft. The use of wireless teledevices in an aircraft maybe dangerous to the operation of the aircraft, disrupt the wireless telephonenetwork, and may be illegal.■ Potentially explosive environmentsSwitch off your device when in any area with a potentially explosiveatmosphere and obey all signs and instructions. Potentially explosiveatmospheres include areas where you would normally be advised to turn off