[PORTABLE WATER PICK with Powerful Battery], built-in rechargeable battery could work 25-30 days (1 minute per day), only need 4 hours fully charged, No-Hassle to charge it frequently. Portable and compact design, ideal for travel, home, office, and hotel use. USB-C charging is compatible with a variety of electric equipment, such as power adapter, computer, laptop, car charger, power bank, etc. [9oz(250mL) WATER RESERVOIR], streamline shape and unique drainage design also easy for cleaning inside of flosser and dry. It is made from Eco-friendly plastic material, non-toxic, bacteriostatic, and IPX7 waterproof, use it in the shower, bathing, or any humid condition with no worries. 2 minutes timer function prevents water pump dry grinding from child mistake turn-on the flosser. [4 INTERCHANGEABLE NOZZLE], this teeth cleaner includs 4 replaceable jet tips enable 1-year tooth cleaning (suggest 1 tip for 3 months). 360 degree rotated nozzle could clean up every corner of the tooth, improving the health of your gums. Bring you a fresh tone, a cleaner, fresher and healthier mouth with regular flossing. Come with a microfiber drawstring bag, is easy for carrying the dental flosser. [6 PERSONALIZED MODES], this dental care oral irrigator offer 5 intensity flossing modes for daily deep cleaning, and 1 pulse flossing mode for gum massage. At water pressure 40-140PSI and 1600time/minute pulse rate, it proved to remove 99.9% of plaque between the teeth and gum line, improving 50% more effective than other brands for cleaning food debris & particles. [LATEST PULSE TECHNOLOGY], Maxever cordless water flosser built with new patent pulse technology, delivers consistent 0.6mm powerful water streaming at high pressure with no energy decrement, even in case of low battery. If you are not satisfied with your product, please let us know. All of our water flossers have 90 days money back & 18 months product guarantee.