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Precautions
For the correct use and good performance of the device, the user must fully understand the manual as well as strictly
follow the instructions provided.
• Please avoid high temperature (over 35°C) or low temperature (below 0°C).
• Never knock the main machine violently.
• Never let the device come in contact with chemicals such as benzene, thinner etc.
• Do not let the device get close to strong magnetic field, electric field etc.
• Keep away from direct sunlight or heating appliances.
• Never privately dissemble, repair or modify the device.
• Using the device and the earpiece during bicycling, car and motorcycle driving is likely to cause danger.
• Never use higher volume, which may damage your hearing ability.
• Divide scraped packing, batteries, old electronic products and dispose them properly.
• Please charge under the following circumstances:
A. The battery icon shows no power.
B. The system automatically shuts down, and immediately shuts down after a re-start.
C. The operating button does not respond.
D. The product displays the red icon ( ) on the lower-right corner of the screen.
NOTE: Pictures in this manual are for reference only.
DO NOT throw the battery in municipal waste.
The symbol of crossed out wheeled bin
indicates that the battery should be NOT
placed in municipal waste.