This water flosser features an upgraded internal waterproof structure for better water resistance, along with a 300ml large-capacity water tank that allows a full clean in one use and a built-in 2500mAh battery that lasts 20–30 days on a single charge. Its low-frequency, high water flow design helps protect gums while providing a comfortable experience, and five pressure modes meet the needs of different users. With an IPX8 waterproof rating, the water pump, motor, circuit board, and battery are placed in separate units to improve overall waterproof performance. The patented gravity ball design allows cleaning from any angle, ensuring thorough, full-mouth cleaning without blind spots.