Huawei EC156, User Manual

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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. To prevent accidents,
do not use your wireless device while driving.

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 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.