?Package & Service? With FDA, CE, FCC, RoHS etc certification, the portable dental oral irrigator is ideal for preventing oral problems such as tooth decay, plaque, dental calculus, dental implant, orthodontics and periodontitis, etc. You will get 1 x Water Flosser, 4 x Replacement Nozzles, 1 x USB Charging Cable, 1 x User Manual. If you need any help with the flosser, please feel free to contact us. We are always standby to answer your question and problems. ?Powerful Battery USB Cable & Compact for Travel?With a powerful eco-friendly 1500mAh battery, the water teeth cleaner takes 4-6 hours to charge fully and about 21 days of continuous use. Equipped with the USB cable Type C which is more common applicable to a variety of charging equipment such as power banks, computers, laptops, and much more. The cordless design makes it easily to use and store for a business trip, daily use at home or as gifts. ?300ML Water Tank & IPX7 Waterproof?300ML detachable water tank with the gravity ball provides enough and uninterrupted oral dental flossing. 2 filling options with a big opening for easy pouring and regular cleaning to avoid water residue. The dental flosser is made of food-grade material, safe and secure, IPX7 waterproof design, washable and can even be used in the shower so don't have to worry about spilling water and making a mess in the bathroom. ?5 Modes with Memory Function & 4 Multifunctional Nozzles? The oral irrigator features 5 modes (Strong, Normal, Soft, Pulse, Child) to meet your different dental conditions. The innovative memory function keeps your preferable mode when using the next time. 2 Standard Tips, 1 Orthodontic Tip, and 1 Periodontal Tip fulfill your variety needs from standard clean to gum massage. The 360 degree rotatable nozzle can easily clean hard-to-reach areas. ?Deeply Teeth Cleaning & Gums Protecting?Equipped with a strong pump with less than 55db low noise, the water flosser features 1400-1800 per minute pulse frequency and 30-110 PSI water pressure to bring high-power and stable stream delivery that can clean deep into the crevices of the teeth while avoiding secondary damage to the teeth and effectively removes 99.99% of food residue and plaque to keep your breath fresh and improve your oral health.