Huawei M881 Quick Start - Manual (Page 15)

14
• Do not place the device over the air bag or in the air bag
deployment area in a motor vehicle. Doing so may hurt you
because of the strong force when the air bag inflates.
• Do not use your device while flying in an aircraft or immediately
before boarding. Using wireless devices in an aircraft may
disrupt wireless networks, present a hazard to aircraft operation,
or be illegal.
Operating environment
• Avoid dusty, damp, or dirty environments. Avoid magnetic fields.
Using the device in these environments may result in circuit
malfunctions.
• Do not use your device during thunderstorms to protect your
device against any danger caused by lightning.
• Ideal operating temperatures are -10 °C to 45 °C. (Keep the
ambient temperature between 0°C and 45°C while the device is
being charged. Keep the ambient temperature between -10°C to
45°C for using the device powered by a battery.) Ideal storage
temperatures are -20 °C to 50 °C. Extreme heat or cold may
damage your device or accessories.
• Do not expose your device to direct sunlight (such as on a car
dashboard) for prolonged periods.
• To protect your device or accessories from fire or electrical shock
hazards, avoid rain and moisture.
• Keep the device away from sources of heat and fire, such as a
heater, microwave oven, stove, water heater, radiator, or candle.
• Do not place sharp metal objects, such as pins, near the
earpiece or speaker. The earpiece may attract these objects and
result in injury.
• Stop using your device or applications for a while if the device is
overheated. If skin is exposed to an overheated device for an
extended period, low temperature burn symptoms, such as red
spots and darker pigmentation, may occur.