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Do not increase the volume to block noisy surroundings.
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Reduce the volume if you can’t hear people speaking near you.
Safety of Children
Please comply with all precautions with regard to children's safety. Letting
the child play with your device or its accessories, which may include parts
that can be detached from the device, may prove dangerous, as it may
present a choking hazard. Make sure that small children are kept away
from the device and accessories.
Environment Protection
Follow all the local regulations regarding the disposal of your devices or
electrical accessories (such as chargers, headsets, or batteries). Recycle
them. Do not dispose of an exhausted battery or a used device in a garbage
can.
Accessories
Use only the accessories, such as the charger, battery, and headset,
delivered by manufacturer. Using accessories of other manufacturers or
vendors with this device model might invalidate any approval or warranty
applicable to the device, might result in the non-operation of the device,
and might be dangerous.
Battery and Charger
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The battery can be charged and discharged hundreds of times before it
eventually wears out. When the standby time and talk time are shorter
than normal, replace the battery.
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Use the AC power supply defined in the specifications of the charger.
An improper power voltage may cause fire or the charger may not
function properly.