1. Water column ergonomic nozzle: Water column is a relatively suitable water column, too much water column cannot clean between teeth, too small water column and too much force will damage the gums.2. Easy to use: just twist the bottom of the test tube counterclockwise to open and fill with water, clean teeth and gums with one button.3. No need to charge: just fill the water tank (70 ml) and press the button to the insert, pocket size is convenient to carry and travel, and replace the toothbrush as a travel product.4. Effective cleaning: Slightly dirt and food particles between the teeth and under the gums, performs deep cleaning, and cannot remove clean silk on a regular basis.5. The perfect gift SPA: You can have a comfortable beauty SPA at home or while traveling. The best gift for friends and family, very suitable for use in the office, gym, family or use in business and vacation