Four Cleaning Modes Strong Mode 110PSI: Deep cleaning, quick cleaning Normal Mode 90PSI: Standard water pressure to meet most daily cleaning Soft Mode 70PSI: Gentle cleaning, suitable for people with sensitive teeth DIY Mode20-140PSI: Freely adjust according to personal need Anti-skid Design Streamlined Curve shape, Comfortable grip, no slippery hands 5 Different Nozzles for Oral Care 1. Standard Nozzle Suitable for daily tooth cleaning and in-depth cleaning of dirt between teeth and back teeth. 2. Big Tooth Nozzles suitable for cleaner between big teeth 3. Periodontal Nozzle It can go deep into 6mm dental bag for cleaning, suitable for gingivitis and periodontal use. 4. Orthodontic Nozzle Specially used by the party who with braces to wash away the food residue between the braces. 5. Tongue Nozzle Daily clean the tongue coating and keep your breath fresh. IPX6 Waterproof Whole body can be washed Advanced 50-Day Battery Life Battery life can last up to 50 days in the lowest pressure mode, while most similar irrigators can only last up to 10 days of use. The water flosser cordless design makes it convenient to use both at home and on the go. 300ml Water Tank with Two Way Water Filling How to Use DIY Mode 1. In DIY working mode, press and hold the ON/OFF key, the water pressure will change from 20-140psi. After circulating to the appropriate water pressure, release the key to flush with the set strength. 2.For the next use after shutdown,when it is adjusted to DIY mode, it will automatically remember the last adjusted water pressure, without further adjustment. 3. If it is necessary to change other water pressure, press and hold the ON/OFF key again for adjustment. Package Including