Huawei ETS222M User Manual page 10

Do not use your FWT while driving. Secure the FWT on its holder. Do not
place the FWT on the seat or other places where it can get loose in a
sudden stop or collision.
Observe the rules and regulations of airline companies. Power off your
FWT before boarding an aircraft.
Operating Environment
Do not place magnetic storage media such as magnetic cards and
floppy disks near the FWT. Radiation from the FWT may erase the
information stored on them.
Do not put your FWT, battery, or other accessories in containers with
strong magnetic field, such as the induction cooker and microwave oven.
Otherwise, circuit failure, fire, or explosion may result.
Do not place or use the FWT, the battery or the power adapter near any
heat sources such as fire or a heater; or places with flammable gases;
or areas with electrical appliances that give out heat. Otherwise, it will
cause fire, explosion and breakdown of the FWT
Because the FWT needs to eliminate heat during working, put the FWT
and the power supply in a ventilated and shadowy place. Never airproof
the FWT or put something on it or place it near water, fire as well as
inflammable and explosive materials.
Because the FWT contains precision devices, you should put it in a dry
place and away from moist materials.
Before cleaning the FWT, please power off the FWT, and then disconnect
the power supply and take out the battery. Before moving the FWT,
please disconnect the external power supply.
Do not subject your FWT, battery, and power adapter to serious collision
or shock. Otherwise, battery leakage, FWT malfunction, overheats, fire,
or explosion may result.
Do not place sharp metal objects such as pins near the earpiece. The
earpiece may attract these objects and hurt you when you are using the
FWT.
Do not place the FWT in the area over the air bag or in the air bag
deployment area. Otherwise, the FWT may hurt you owing to the strong
force when the air bag inflates.
In raining and lightning, disconnect the power adapter from external
power supply and power off the FWT.
Put your FWT, battery, and power adapter in places beyond the reach of
children. Do not allow children to use the FWT, battery, or power
adapter without guidance.
Do not touch the antenna when a call is going on. Touching the antenna
may affect call quality and cause the FWT to operate at a power level
higher than needed.
The network signal condition will directly affect the quality and stability
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