Huawei H350L/B890-66s Quick Start Manual page 18

Ideal operating temperatures are 0°C to 45°C. Ideal storage temperatures are

-30°C to +60°C. Extreme heat or cold may damage your device or accessories.
Keep the device and accessories in a well-ventilated and cool area away from

direct sunlight. Do not enclose or cover your device with towels or other objects.
Do not place the device in a container with poor heat dissipation, such as a box or
bag.
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 any object, such as a candle or a water container, on the device. If

any foreign object or liquid enters the device, immediately stop using it, power it
off, and remove all cables connected to it. Then, contact an authorized service
center.
Do not block device openings. Reserve a minimum of 10 cm around the device to

dissipate heat.
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.
Do not touch the device's antenna. Otherwise, communication quality may be

reduced.
Do not allow children or pets to bite or suck the device or accessories. Doing so

may result in damage or explosion.
Observe local laws and regulations, and respect the privacy and legal rights of

others.
The device should be installed and operated with a minimum distance of 20 cm

between the radiator and your body.
Keep the device in a place with good reception. The distance between the device

and other metal materials (such as metal brackets or metal doors and windows)
should be greater than 25 cm and the distance between the device should be
greater than 30 cm.
Child's safety
Comply with all precautions with regard to child's safety. Letting children play with

the device or its accessories may be dangerous. The device includes detachable
parts that may present a choking hazard. Keep away from children.
The device and its accessories are not intended for use by children. Children should

only use the device with adult supervision.
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