Huawei Mobile WiFi 3s Quick Start Manual page 12

pacemaker to prevent potential interference with the
pacemaker. If using a pacemaker, hold the device on the
side opposite the pacemaker and do not carry the device in
your front pocket.
Ideal operating temperatures are 0 °C to 35 °C. Ideal
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storage temperatures are -20 °C to +60 °C. Extreme heat or
cold may damage your device or accessories.
Keep the device and accessories in a well-ventilated and
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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.
Keep the device away from sources of heat and fire, such as
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a heater, microwave oven, stove, water heater, radiator, or
candle.
Using an unapproved or incompatible power adapter,
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charger or battery may cause fire, explosion or other
hazards.
Choose only accessories approved for use with this model
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by the device manufacturer. The use of any other types of
accessories may void the warranty, may violate local
regulations and laws, and may be dangerous. Please
contact your retailer for information about the availability of
approved accessories in your area.
For pluggable devices, the socket-outlet shall be installed
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near the devices and shall be easily accessible.
Ensure that the charger meets the requirements of Clause
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2.5 in IEC60950-1/EN60950-1/UL60950-1 and has been
tested and approved according to national or local
standards.
Keep the battery away from excessive heat and direct
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sunlight. Do not place it on or in heating devices, such as
microwave ovens, stoves, or radiators. Batteries may
explode if overheated.
Do not attempt to modify or remanufacture the battery,
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insert foreign objects into it, or immerse or expose it to
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