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Warning and Notice
To the Owner
• Some electronic devices are susceptible to electromagnetic interference
sent by your device if inadequately shielded, such as the electronic system
of vehicles. Please consult the manufacturer of your device before using if
necessary.
• Operating your device may interfere with medical devices like hearing aids
and pacemakers. Please always keep them more than 20 centimeters away
from such medical devices when they are turned on. Turn your device off if
necessary. Consult a physician or the manufacturer of the medical device
before using your device.
• Be aware of the usage limitation when using your device at places such as
oil warehouses or chemical factories, where there are explosive gases or
explosive products being processed. Turn off your device if required.
• The use of electronic transmitting devices is forbidden in aircrafts, at petrol
stations and in hospitals. Please observe and obey all warning signs and
switch off your device in these conditions.
• Do not touch the inner antenna area if not necessary. Otherwise it will affect
your device’s performance.
• Store your device out of the reach of little children. Your device may cause
injury if used as a toy.
• Do not touch the metallic parts of your device so as to avoid a burn, when
your device is working.
Using Your Device
• Please use original accessories or accessories that are authorized. Using
any unauthorized accessories may affect your device’s performance, and
violate related national regulations about telecom terminals.
• Avoid using your device near or inside metallic structures or establishments
that can emit electromagnetic waves. Otherwise it may inuence signal re-
ception.
• Your device is not waterproof. Please keep it dry and store in a shady and
cool place.
• Do not use your device immediately after a sudden temperature change. In
such case, it will produce dew inside and outside your device, so don’t use it
until it becomes dry.
• Handle your device carefully. Do not drop, bend or strike it. Otherwise your
device will be damaged.
• No dismantling by non-professionals and only qualied technicians can un-
dertake repair work.
• Operating temperature range of 0°C ~ +35°C and humidity range of 5% ~
95% are recommended.
Using Battery
• Do not short-circuit the battery, as this can cause excessive heat and re.
• Do not store battery in hot areas or dispose of it in a re to avoid explosion.
• Do not disassemble or modify the battery.
• When not using the battery for a long period, remove it from your device and
store it in a cool dry place.
• Never use any charger or battery damaged or worn out.
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