The water flosser features a unique gravity ball design that ensures the water in the tank can be used up. Its low noise design allows you to enjoy a quiet flushing experience. IPX7 Waterproof & 300 ML Water Tank- The water flosser has a charging port slot on the back of the unit, you can cover it while you are in the shower, very waterproof for peace of mind while you are in the shower.
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