implanted cardioverter defibrillator, to avoid potentialinterference with the medical device. Persons whohave such devices should:● Always keep the wireless device more than 15.3centimetres (6 inch) from the medical device whenthe wireless device is turned on.● Not carry the wireless device in a breast pocket.● Hold the wireless device to the ear opposite themedical device to minimise the potential forinterference.● Turn the wireless device off immediately if there isany reason to suspect that interference is takingplace.● Read and follow the directions from themanufacturer of their implanted medical device.If you have any questions about using your wirelessdevice with an implanted medical device, consult yourhealth care provider.Hearing aidsSome digital wireless devices may interfere with somehearing aids. If interference occurs, consult yourservice provider.VehiclesRF signals may affect improperly installed orinadequately shielded electronic systems in motorvehicles 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, orits representative, of your vehicle or any equipmentthat has been added.Only qualified personnel should service the device orinstall the device in a vehicle. Faulty installation orservice may be dangerous and may invalidate anywarranty that may apply to the device. Check regularlythat all wireless device equipment in your vehicle ismounted and operating properly. Do not store or carryflammable liquids, gases, or explosive materials in thesame compartment as the device, its parts, orenhancements. For vehicles equipped with an air bag,remember that air bags inflate with great force. Do notplace objects, including installed or portable wirelessequipment in the area over the air bag or in the air bagdeployment area. If in-vehicle wireless equipment isimproperly 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. TheAdditional safety information197 Additional safety information