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Appendix
the temperature is lower than 0°C, performance of the battery
is affected.
• Do not place sharp metal objects such as pins near the
earpiece. The earpiece may attract these objects and hurt you
when you are using the device.
• Before you clean or maintain the device, power off the device
and disconnect it from the charger.
• Do not use any chemical detergent, powder, or other chemical
agents (such as alcohol and benzene) to clean the device and
the charger. Otherwise, parts of the device may be damaged
or a fire can be caused. You can clean the device and the
charger with a piece of damp and soft antistatic cloth.
• Do not dismantle the device or accessories. Otherwise, the
warranty on the device and accessories is invalid and the
manufacturer is not liable to pay for the damage.
Emergency Call
You can use your device for emergency calls in the service area.
The connection, however, cannot be guaranteed in all
conditions. You should not rely solely on the device for essential
communications.