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Before using and operating this device, read the following precautions to ensure
optimal device performance and avoid dangers or unauthorized operations.
● To prevent hearing damage, avoid using the device at a high volume for
long periods of time.
● Some wireless devices may interfere with implantable medical devices and other
medical equipment, such as pacemakers, cochlear implants, and hearing aids.
When using the product, keep it at least 15 cm away from such medical devices.
Consult the manufacturer of your medical equipment for more information.
● Use this device at temperatures between 0°C and 35°C and store this device and its
accessories at temperatures between –20°C and +45°C. Extreme heat or cold may
damage this device.
● When charging this device, ensure that the charger is plugged into a nearby power
socket that is easy to reach. Disconnect the charger from this device and unplug
the charger from the power socket once this device is fully charged.
● Ensure that the power adapter meets the requirements of Clause 2.5 in IEC60950-
1/EN60950-1 and it is tested and approved according to national or local
standards.
● Observe all local traffic laws and regulations while using this device. Do not use
this device while driving.
● Keep this device and its accessories that may contain small components out of the
reach of children. Otherwise, children may damage this device and its accessories
by mistake, or swallow small components, which may cause choking.
● Do not expose this device and its accessories to rain or moisture, as this is a
potential fire hazard and may cause you to experience an electric shock.
● Avoid placing this device or its accessories in environments that are too hot (for
example, near heat sources or open flame) or cold as this may cause device
malfunctions or even explosions.
● Do not disassemble, drop, hit, squeeze, or modify the device battery. Do not insert
foreign objects into the device battery, or otherwise puncture it. Do not submerge
the device battery in water or other liquids. Do not store the device battery in high-
temperature environments as this may cause it to short-circuit, overheat, leak,
catch on fire, and even explode.