Specifications: 1.Product Name: Goodpik WF-203 oral irrigation machine for adults; 2.Water pressure range: 30-120 PSI; 3.Material: 100% high quality ABS plastic body and 100% high quality PC material water tank; 4.Power adapter input voltage: compatible with global voltage (100-240 V); 5.Power: Input: DC 5V / 1A, output: 3.7V / 5W 6.Pulse rate: 1400 times/min; 7.Certification: CE/FC/FDA; 8.Battery capacity: 1400 mAh rechargeable lithium battery; 9.Charging mode: convenient portable USB charging; 10.Waterproof level: IPX8; 11.Charging time: 4 hours; 12.Time of operation at full charge: 15 days (work twice a day) or continuous operation 60 minutes; 13. Water Tank Type: Detachable Large Capacity 300ml Water Tank. Our Advantage And Main Function: Deeply Clean Teeth, Whiten Teeth and Improve Gum HealthWith upgraded unique pulsation technique, Goodpik water dental flosser can offer high pressure water pulse 1400-1800 times/min, 30-130PSI strong water pressure to remove 99.99% food residue hidden deep, massage the gum effectively and promoting blood circulation. Also helpful for bleeding gums, bad breath, beneficial orthodontic brace and bridge care. 5 Flossing Model to Suit All Different Conditions of Teeth and GumsClean- With 1800 times/minute strong water pulses to remove smaller particles between tooth. Soft - Offers gentle 1400 times/minute pressure to clean sensitive teeth. Massage - With 1400~1800 times/minute to deep clean your teeth and stimulate and massage the gums. Please choose soft mode when you use dental flosser at the first time. Carry on SizeCordless and lightweight, this water teeth cleaner picks is ideal for travel, 5 interchangeable jet tips included for your whole family. The 360rotatable nozzle allows you to easily clean areas that are difficult to reach and prevents tooth decay,dental plaque,dental calculus,gingival bleeding and dental hypersensitivity. Powerful Battery Life with USB Cable Charged for Travel & IPX7 WaterproofWith powerful and environmental lithium battery, fully charged need 4 hours and used continuously for about 21 days. Come with USB Cable, (Adapter Not Included), applicable to a variety of charging equipements such as power bank, computer, laptop.... With double-sealing rings, Goodpik oral irrigator prevent water leakage reliably, can use for shower in the bathroom and it's washable to clean. Packing list: 1 x oral irrigation body (not including nozzles) 6 x replaceable nozzles 1 x USB charging cable (not including power adapter) 1 x instruction manual