【Supervised by a Practicing Dentist】Oral Irrigator Jet Washer Cordless 1200mAh Battery Rechargeable Type-C Ultra-Compact Mini Portable Ultrasonic Water Flow 3 Modes 3-Level Intensity Adjustment 230mL Water Tank IPX7 Waterproof 4 Replacement Nozzles Included Storage Bag Included Japanese Instruction Manual Included (Black) Adopting the latest pulse water flow technology. The jet washer vibrates 1200 to 1400 times per minute, thoroughly removing dirt from between teeth. The 360-degree rotating nozzle makes it easy to direct the nozzle to hard-to-reach areas, removing up to 99.99% of food debris from every corner. 【3 Water Flow Modes & Memory Function】Equipped with 3 operating modes (Low/High/Pulse) that allow you to adjust the intensity according to your gum condition, and can be switched freely with one button. It has a memory function that remembers the water pressure level used previously, so you can clean with the same water pressure next time. Some people may feel that even the lowest intensity is too strong because the selected mode is incorrect, but the lowest intensity of this product is level 1 of the Low mode. This mode is recommended for beginners. The High mode has a powerful jet stream that thoroughly removes dirt from between teeth. The water pressure strength is, from low to high, Low - High - Pulse. An oral irrigator is a product that uses the water pressure from a thin nozzle to clean away dirt that cannot be removed by a toothbrush or floss alone. Other oral irrigators use water pressure of 20-105 PSI and a water flow mode of 1200 rotations/minute. This oral irrigator adopts the latest technology and updates the water pressure to 60-120 PSI. Two types of replacement nozzles, a total of 4, are included, so you can use them with your family. The oral irrigator weighs 240g and is 15.3 x 8 x 6.3 cm in size. Convenient to put in a bag. 【IPX7 Waterproof & 230ML Water Tank】IPX7 waterproof specification allows you to use it in the bath or while brushing your teeth. Upgraded 230ML large water tank, meets the need for all-around cleaning at once, and does not require frequent water additions. 【With Safety Lock】【Type-C Charging】1200mAh battery capacity, a full charge takes only 2 hours, and can be used for about 20 days by using it for 5 minutes every day.