Huawei U2800a User Manual page 20

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
Observe local laws and regulations while using the device. In addition,
if using the device while driving a vehicle, comply with the following
guidelines:
Concentrate on driving. Your first responsibility is to drive safely.

Do not talk on the device while driving. Use hands-free accessories.

When you have to make or answer a call, park the vehicle at the

road side before using your device.
RF signals may affect electronic systems of motor vehicles. For

more information, consult the vehicle manufacturer.
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.
Do not use your device while flying in an aircraft. Power off your

device 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
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.
The device complies with the RF specifications when the device is

used near your ear or at a distance of 1.5 cm from your body.
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