Specification Rated voltage: 5V Battery capacity: 2000mAh Water tank capacity: 300ML Waterproof grade: IPX7 Rated power: 5W Charging time: 3-4H Rated water pressure: 20-140psi Adjusting gear: 4 cleaning modes Pulse frequency: 1600-1800 times per minute Product size: 235*92*70mm 4 Cleaning Modes- Meet Different Needs Strong Mode - 140PSI Deep cleaning between teeth or brace Normal Mode - 90PSI Efficient cleaning and daily cleaning Soft Mode - 70PSI Gentle cleaning, suitable for sensitive teeth DIY Mode- Adjust 20 to 140PSI water pressure at will It can automatically adjust the flushing pressure with 20 to 140 PSI, which can meet the different oral condition. Advanced 50-Day Battery Life Battery life can last up to 50 days in the lowest pressure mode, while most similar irrigators can only last up to 10 days of use. The water flosser cordless design makes it convenient to use both at home and on the go, Power Bank, Car Charge, pc also can provide the charging. it is convenient for travel. Deeply Clean Teeth & Improve Gum Health Dental water jet flosser, rotating jet tips combined high pressure water pulse 1600-1800 times/min, remove 99.99% food residue hidden deep within dental cracks and the gum effectively, traditional brushing can not reach, while massaging your gums and promoting blood circulation. Detachable Water Tank The water tank capacity is 300ml. One fill is enough for a 60-second full mouth clean. No Need to Add Water Frequently. Detachable Tank is Easy to Clean after 4pcs Multiuse Nozzles 01 Standard Nozzle: Daily tooth cleaning for deep dental crevices, dirt on rear 02 Orthodontic Nozzle: Flush Away Food Residue between braces 03 Periodontal Pocket Nozzle: Be cleaned with 6mm deep pockets suitable for gingivitis and periodontitis 04 Tongue Scraping Nozzle: Clean your tongue daily to keep your breath fresh 360 Rotatable Nozzles & Anti Slip Comfortable Grip IPX Waterproof Convenient and safe to use in the shower Instruction for Use Step 1: Install the nozzle - Sert the body as required until it click Step 2: Water Filling Step 3: Select Mode Step 4: Start Flushing HOW USE THE DIY MODE Press and hold the opening key firmly, and the water pressure will cycle from 20 - 140psi. After selecting the appropriciate water pressure, press the opening key to rinse according to the set force