50Warnings and precautionsRemember to follow any special regulations in force in any area, and always switch off yourdevice when its use is prohibited or when it may cause interference or danger. Use the deviceonly in its normal operating positions. To successfully transmit data files or messages, thisdevice requires a good quality connection to the network. In some cases, transmission of datafiles or messages may be delayed until such a connection is available. Ensure that the aboveseparation distance instructions are followed until the transmission is completed. Parts of thedevice are magnetic. Metallic materials may be attracted to the device, and persons withhearing aids should not hold the device to the ear with the hearing aid. Do not place creditcards or other magnetic storage media near the device, because information stored on themmay be erased.Medical devicesOperation of any radio transmitting equipment, including wireless phones, may interfere withthe functionality of inadequately protected medical devices. Consult a physician or themanufacturer of the medical device to determine if they are adequately shielded from externalRF energy or if you have any questions. Switch off your device in health care facilities whenany regulations posted in these areas instruct you to do so. Hospitals or health care facilitiesmay be using equipment that could be sensitive to external RF transmissions.Pacemakers. Pacemaker manufacturers recommend that a minimum separation of 15.3 cm(6") be maintained between wireless devices and a pacemaker to avoid potential interferencewith the pacemaker. These recommendations are consistent with the independent researchby and recommendations of Wireless Technology Research. Persons with pacemakers shoulddo the following:• Always keep the device more than 15.3 cm (6") from the pacemaker.• Not carry the device near your pacemaker when the device is switched on. If yoususpect interference, switch off your device, and move it.Hearing aids. Some digital wireless devices may interfere with some hearing aids. Ifinterference occurs, consult your service provider.VehiclesRF signals may affect improperly installed or inadequately shielded electronic systems inmotor vehicles such as electronic fuel injection systems, electronic anti-skid (anti-lock)braking systems, electronic speed control systems, and air bag systems. For moreinformation, check with the manufacturer, or its representative, of your vehicle or anyequipment that has been added. Only qualified personnel should service the device, or installthe device in a vehicle. Faulty installation or service may be dangerous and may invalidate anywarranty that may apply to the device. Check regularly that all wireless equipment in yourvehicle is mounted and operating properly. Do not store or carry flammable liquids, gases, orexplosive materials in the same compartment as the device, its parts, or enhancements. Forvehicles equipped with an air bag, remember that air bags inflate with great force. Do notplace objects, including installed or portable wireless equipment in the area over the air bag orin the air bag 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 isprohibited. Switch off your device before boarding an aircraft. The use of wireless teledevicesin an aircraft may be dangerous 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 atmosphere and obey allsigns and instructions. Potentially explosive atmospheres include areas where you would