1. The machine adopts waterproof structure, and it is forbidden to smack. If the shell is damaged, please do not use it and contact us. 2. During use, please completely immerse the body in water for the best effect. 3. The charging base is used for charging. Do not put it into water. 4. The charging voltage of the unit is 5V. If the original charging head is lost, please charge it with standard mobile phone charger or computer USB port to avoid accidents. 5. The material of the machine is ABS plastic. Do not put the equipment into liquid over 60C and keep it away from open flame.
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