[30 DAYS LONG BATTERY LIFE USB RECHARGEABLE for TRAVEL] The rechargeable irrigation can fully charge within 4 hours and supports 30 days of use. You can use a PC, power adapter, power bank, or car charger to charge the flosser. The dental flosser water jet is equipped with a storage bag and a nozzle storage box, which can easily meet your deep cleaning needs whether you are on a business trip or traveling. [IPX6 WATERPROOF ALL DIRECTION CLEANING] The IPX6 waterproof body provides dual protection for the interior and exterior of the flossing machine, ensuring safe use in the shower or bathroom. The water flow rate of 200ML min can easily clean the hidden areas that are hard to reach with traditional toothbrushes to prevent debris and dental plaque. Say goodbye to plaque and hello to a healthier smile!. [DIY MODES MEMORY FUNCTION] Customize your oral care needs with our upgraded water flosser! Our dental flosser adds a new DIY mode on the basis of the traditional 3 modes, you can freely adjust the water pressure from 30psi to 120psi, especially suitable for users with sensitive teeth. Memory Function helps keep in your preferable mode for next use. Great for people with implants, braces, crowns, bridges, and gingivitis. [4 CLEANING MODES 5 MULTIFUNCTIONAL NOZZLES] The water flosser comes with 4 different cleaning modes (Strong, Normal, Soft, DIY) and 5 nozzles for different functions, with lots of options to make sure you can use flosser in your personality. Strong Mode is for deep and fast cleaning, Normal Mode is standard water pressure to meet daily cleaning, Soft Mode is for gentle cleaning, suitable for people with sensitive teeth, DIY Mode allows you to freely adjust the flushing pressure. [SUPER DEEP TEETH CLEANING GUMS MASSAGE] The water flossers for teeth cordless combined with high-pressure water pulses of 1600-1800 times min, effectively removes 99.99 of food residue hidden in teeth and gums, which is not achieved by traditional brushing. The power flossers can effectively solve multiple oral problems and massage the gum. Our waterflosser is specially made for sensitive teeth and can be used by children.