Powerful Deep Cleaning: This cordless, portable water flosser delivers a high-speed dual-stream water flow of 1400-1800 pulses per minute and 50-150 PSI water pressure. It effectively flushes between teeth, removes food particles, and leaves your mouth feeling fresh and clean. 5 Cleaning Modes: This portable travel water flosser features 5 pressure modes to meet your various needs: Strong (150 PSI), Normal (120 PSI), Gentle (80 PSI), Pulse (50-120 PSI), and Child (50 PSI). Whether you want to gently clean sensitive gums or seek deep and powerful cleaning, this water flosser can fulfill your needs. Large-Capacity 350ml Water Tank, Wide-Mouth Design: The detachable 350ml water tank provides a revolutionary change. No need to refill water during use, super convenient. Plus, compared to the old narrow-mouth design, the wide-mouth design is easier to remove any stains or residue. It's a smarter, more advanced solution for hassle-free cleaning. 35-Day Battery Life: Easily use it for up to 35 days on a single charge. It comes with a USB-C charging cable, compatible with 5V1A adapters or any USB port, such as your power bank, laptop, or other devices. (Adapter not included) 4 360° Rotatable Replacement Heads: The 360° rotatable replacement heads allow you to adjust the angle for more thorough cleaning and easily reach every nook and cranny. IPX7 Waterproof, Shower-Friendly: This water flosser is IPX7 waterproof and can be safely used in the shower or bath. (When using it in the shower, ensure the silicone cover over the charging port is sealed.) Gravity Ball, Efficient Water Supply: The improved gravity ball design is smarter than traditional water sensors. It can adapt to the water tank angle, ensuring a consistent, uninterrupted water flow and saying goodbye to annoying interruptions. All this to give you a smooth and worry-free experience.