VehiclesRF signals may affect improperly installed orinadequately shielded electronic systems in motorvehicles such as electronic fuel injection systems,electronic antilock braking, electronic speed controlsystems, and air bag systems. For more information,check with the manufacturer of your vehicle or itsequipment.Only qualified personnel should service the device orinstall the device in a vehicle. Faulty installation orservice may be dangerous and may invalidate anyguarantee that may apply to the device. Checkregularly that all wireless device equipment in yourvehicle is mounted and operating properly. Do notstore or carry flammable liquids, gases, or explosivematerials in the same compartment as the device, itsparts, or accessories. Remember that air bags inflatewith great force. Do not place your device oraccessories in the air bag deployment area.Switch off your device before boarding an aircraft. Theuse of wireless teledevices in an aircraft may bedangerous to the operation of the aircraft and may beillegal.Potentially explosiveenvironmentsSwitch off your device when in any area with apotentially explosive atmosphere. Obey all postedinstructions. Sparks in such areas could cause anexplosion or fire resulting in bodily injury or death.Switch off the device at refueling points such as neargas pumps at service stations. Observe restrictions onthe use of radio equipment in fuel depots, storage anddistribution areas; chemical plants; or where blastingoperations are in progress. Areas with a potentiallyexplosive atmosphere are often, but not always, clearlymarked. They include areas where you would beadvised to turn off your vehicle engine, below deck onboats, chemical transfer or storage facilities and wherethe air contains chemicals or particles such as grain,dust, or metal powders. You should check with themanufacturers of vehicles using liquefied petroleumgas (such as propane or butane) to determine if thisdevice can be safely used in their vicinity.Emergency callsImportant: This device operates using radiosignals, wireless networks, landline networks anduser-programmed functions. If your device supportsvoice calls over the internet (internet calls), activate 153 Additional safety information