What does the product include? 1 * Water Dental Flosser1 * Charging Cable (Without charger adapter)4 * Nozzle Tips1 x User Manual TOVENDOR Electric Water Flosser 3 Modes, 4 Replacement Tips, 230ML Water Tank Product weight: 0.5 lbs Product size: 8.2*2.1*2.1 Water tank capacity: 230 ml Style: Hand-held, portable Working mode: soft, normal, pulse Battery capacity: 1200mAh Charging time: 4 hours Duration: 21 days (single charge) Power supply: 5V 1A adapter(Not included) 1.If you are a person with sensitive teeth, please use soft mode. 2.This product has soft impact and is not easy to hurt your teeth. The 230ml tank makes cleaning your teeth easier. The three pulse modes and the 0.6 mm fine water column can wash away the food residue between the teeth and under the gums, which is the place that the toothbrush cannot reach. Both internally and externally of the water dental flosser are adopted IPX7 waterproof design. Avoid electric leakage and improve safety. firstly, you should Insert the nozzle. The second, put the lid on. Then you need to fill it with water. Finally, you can choose the mode that works for you and start cleaning. Three modes, understand what you need, think you enjoy.