[300ml LARGE LEAK-PROOF WATER TANK] Extra big water reservoir provides enough and uninterrupted oral dental flossing. Due to the open tank and detachable design, it's much easier to clean the limescale inside of the water irrigator tank. Internal leakproof drainage design has exclusive patent, which provides you safe and comfortable flossing experience. [EASY& EFFECTIVELY IMPROVE GUM HEALTH AND TEETH CLEAN] With 1800 times/minute high pressure water pulse and 360°rotating long nozzle. iTeknic teeth cleaner is the easy and most effective way to floss, removing up to 99.9% of food debris and plaque every corner precisely that traditional brushing can not reach. Perfect for braces, implants, and other dental work. [3 CLEAN MODES WITH MEMORY FUNCTION] iTeknic cordless water flosser has Standard, Gentle, Massage Modes with low-noise design, which can meet various oral needs. Preset a mode before use and the innovative Memory Function helps keep on with your preferable mode for next use even if the portable water flosser has been turned off.