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Danger of explosion if battery is incorrectly replaced. Recycle or dispose of used batteries
according to the local regulations or reference instruction supplied with your device.
Prevention of Hearing Damage
Using a headset at high volume can damage your hearing. To reduce the risk of damage to
hearing, lower the headset volume to a safe and comfortable level.
Safety of Children
Keep the device and its accessories out of the reach of children. Otherwise, they may
damage the device and its accessories by mistake, or they may swallow the small
components of the device, causing suffocation or other dangerous situations.
Maintenance
If the device is not used for a long time, power it off, and then remove all the cables
connected to it.
If any exception occurs, for example, if the device emits any smoke or unusual sound or
smell, stop using the device immediately, power it off, remove all the cables connected to
it, and then contact an authorized service center.
If the device screen is broken by colliding with hard objects, do not touch or try to remove
the broken part. In this case, stop using the device immediately, and then contact an
authorized service center in time.
Do not trample, pull, or overbend any cable. Otherwise, the cable may get damaged,
causing malfunction of the device.
Before cleaning the device, stop using it, power it off, and then remove all the cables
connected to it.
Use a clean, soft, and dry cloth to clean the device shell. Do not use any cleaning agent or
spray to clean the device shell.
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
