Features: Brushing can only solve the problem of cleaning the surface of the teeth, so for the gap between the teeth, especially the most important cleaning of the gingival groove, need to be completed through the dental flush device. Baby food grade material, safe and secure. Transparent sprinkler head, direct to see dirty stains, timely cleaning to avoid disease. Mild, does not hurt the gums. 360 readable adjustable nozzle, multi-direction cleaning Angle. Specification: Water tank capacity: 200ML Water pulse: 1500-2000 times/min Water pressure range: 40-90psl Input power: 2W Charging time: about 6 hours Waterproof rating: IPX7 Input voltage: 5V Charging method: USB charging Product use: tooth surface, teeth, periodontal pocket cleaning, gingiva, orthotic care, effectively remove dental plaque. Note: Dental experts suggest that the first user should use the soft mode for a week, and then use the normal mode after getting used to it. For the first time, do not spray water directly along the Asian bag for a long time, so as not to cause gum discomfort. The package includes: 1pc x host 1pc x charging line 5pcs x nozzle 1pc x manual book Packaged Safely in Retail Box