117Copyright © 2006 Nokia. All rights reserved.• Not carry the device in a breast pocket• Hold the device to the ear opposite the pacemaker to minimize the potential 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. If interference occurs, consult your service provider.■ VehiclesRF signals may affect improperly installed or inadequately shielded electronic systems in motor vehicles such as electronicfuel 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 beenadded.Only qualified personnel should service the device, or install the device in a vehicle. Faulty installation or service may bedangerous and may invalidate any warranty that may apply to the device. Check regularly that all wireless device equipmentin your vehicle is mounted and operating properly. Do not store or carry flammable liquids, gases, or explosive materials inthe same compartment as the device, its parts, or enhancements. For vehicles equipped with an air bag, remember that airbags inflate with great force. Do not place objects, including installed or portable wireless equipment in the area over the airbag or in the air bag deployment area. If in-vehicle wireless equipment is improperly installed and the air bag inflates, seriousinjury could result.Using your device while flying in aircraft is prohibited. Switch off your device before boarding an aircraft. The use of wirelessteledevices in an aircraft may be dangerous to the operation of the aircraft, disrupt the wireless telephone network, and maybe illegal.■ Potentially explosive environmentsSwitch 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. Sparksin such areas could cause an explosion or fire resulting in bodily injury or even death. Switch off the device at refuelingpoints 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 operations are in progress. Areas with a potentially explosiveatmosphere are often but not always clearly marked. They include below deck on boats, chemical transfer or storage