Huawei B660-44 User Manual

Safety Information
This section contains important information pertaining to the operating instructions of your device. It also contains information about how to use the device safely. Read this information carefully before using your device.
Electronic Device
Medical Device
z Follow rules and regulations set forth by hospitals and health care
facilities. Do not use your device when using the device is prohibited.
z Some wireless devices may affect the performance of hearing aids or
pacemakers. For any such problems, consult your service provider.
z If you are using an electronic medical device, consult the doctor or the
device manufacturer to confirm whether radio waves affect the operation of this device.
Potentially Explosive Atmosphere
Do not use your device in any area with a potentially explosive atmosphere, and comply with all signs and instructions. Areas that may have potentially explosive atmospheres include the areas where you would normally be advised to turn off your vehicle engine. Triggering of sparks in such areas could cause an explosion or a fire, resulting in bodily injuries or even deaths. Do not use your device at refueling points such as service stations. Comply with restrictions on the use of radio equipment in fuel depots, storage, and distribution areas, and chemical plants. In addition, adhere to restrictions in areas where blasting operations are in progress. Before using the device, watch out for areas that have potentially explosive atmospheres that are often, but not always, clearly marked. Such locations include areas below the deck on boats, chemical transfer or storage facilities, and areas where the air contains chemicals or particles such as grain, dust, or metal powders. Ask the manufacturers of vehicles using liquefied petroleum gas (such as propane or butane) whether this device can be safely used in their vicinity.
Traffic Security
z Observe local laws and regulations while using the device. To prevent
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accidents, do not use your wireless device while driving.
z RF signals may affect electronic systems of motor vehicles. For more
information, consult the vehicle manufacturer.
z In a motor vehicle, do not place the device over the air bag or in the air
bag deployment area. Otherwise, the device may hurt you owing to the strong force when the air bag inflates.
z Do not use your device while flying in an aircraft and before boarding
an aircraft. Using wireless devices in an aircraft may cause danger to the operation of the aircraft and disrupt the wireless telephone network. It may also be considered illegal.
Operating Environment
z Do not use or charge the device in dusty, damp, and dirty places or
places with magnetic fields. Otherwise, it may result in a malfunction of the circuit.
z While using the device, observe the local laws and regulations, and
respect others' privacy and legal rights.
z Place the device or accessories in well-ventilated, cool, and
out-of-direct-sunlight place. Avoid enveloping the device, or covering towels and placing articles on the device. Place the device out of a box or case to avoid poor heat dissipation that results in the damage to the device.
z On a stormy day with thunder, do not use your device, to prevent any
danger caused by lightning.
z Keep the ambient temperature between –10°C to +45°C for using the
device.
z This device should be installed and operated with a minimum distance
of 20 cm between the antenna and all persons.
Safety of Children
Comply with all precautions with regard to children's safety. Letting the child play with your device or its accessories, which may include parts that can be detached from the device, may be dangerous, as it may present a choking hazard. Ensure that small children are kept away from the device and accessories.
Accessories
Use the accessories delivered only by the manufacturer. Using accessories of other manufacturers or vendors with this device model may invalidate any approval or warranty applicable to the device, result in the non-operation of the device, and cause danger.
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