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Welcome to use
Thank you for purchasing the True Wireless Stereo Earbuds B219, Please read the user manual
carefully before use .
Safety Warning
1. Please read the user manual carefully before using and follow the instructions.
2. Please do not modify, assemble, disassemble this earphone. Otherwise, it may cause this
Bluetooth earphone with noise, fire, leakage of electricity, crash and other issues. Such problems
caused by human error are not covered by the warranty range.
3. Please do not use any diluent or volatile liquid to clean the TWS earbud.
4. Please do not listen to high-volume earphones for a long time, to avoid adverse effects on
hearing.
5. Please do not use this TWS earbud in any dangerous area.
Button Function: