Operating Environment - Huawei E5830 Quick Start Manual

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.

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.
While using the device, observe the local laws and regulations, and respect others'
privacy and legal rights.
Place the device or accessories in well-ventilated, cool, and out-of-direct-sunlight
place. Avoid enveloping the device, or covering towels and placing articles on the
device. Place the device out of a box or case to avoid poor heat dissipation that
results in the damage to the device.
On a stormy day with thunder, do not use your device, to prevent any danger caused
by lightning.
Keep the ambient temperature between -10 °C to +35°C for using the device.
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