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 n85• 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 the potentialfor 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 air bagsystems. For more information, check with the manufacturer or its representativeof 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 invalidate anywarranty that may apply to the device. Check regularly that all wireless deviceequipment in your vehicle is mounted and operating properly. Do not store orcarry flammable liquids, gases, or explosive materials in the same compartmentas 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, includinginstalled or portable wireless equipment in the area over the air bag or in the airbag deployment area. If in-vehicle wireless equipment is improperly installed andthe 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 may bedangerous 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 explosive atmosphereand obey all signs and instructions. Potentially explosive atmospheres includeareas 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 oreven death. Switch off the device at refueling points such as near gas pumps atservice stations. Observe restrictions on the use of radio equipment in fuel