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 nHearing aids Some digital wireless devices may interferewith some hearing aids. If interference occurs, consult yourservice provider.VehiclesRF signals may affect improperly installed or inadequatelyshielded electronic systems in motor vehicles such aselectronic fuel injection systems, electronic antiskid (antilock)braking systems, electronic speed control systems, and air bagsystems. For more information, check with the manufacturer,or its representative, of your vehicle or any equipment that hasbeen added.Only qualified personnel should service the device or installthe device in a vehicle. Faulty installation or service may bedangerous and may invalidate any warranty that may apply tothe device. Do not store or carry flammable liquids, gases, orexplosive materials in the same compartment as the device, itsparts, or enhancements.would normally be advised to turn off your vehicle engine.Sparks in such areas could cause an explosion or fire resultingin bodily injury or even death. Switch off the device atrefuelling points such as near gas pumps at service stations.Observe restrictions on the use of radio equipment in fueldepots, storage, and distribution areas; chemical plants; orwhere blasting operations are in progress. Areas with apotentially explosive atmosphere are often, but not always,clearly marked. They include below deck on boats, chemicaltransfer or storage facilities and areas where the air containschemicals or particles such as grain, dust, or metal powders.You should check with the manufacturers of vehicles usingliquefied petroleum gas (such as propane or butane) todetermine if this device can be safely used in their vicinity.Emergency callsImportant: This device operates using radio signals,wireless networks, landline networks, and user-