1. Reasonably control the gas-liquid bubble ratio of 12:1 to form nano-scale rich foam, which can better cover the skin surface and directly cover tiny pores. 2. 280ml large capacity can add 500 times of liquid and can be used by the whole family for 50 days. 3. Built-in 1200 mAh high-capacity lithium battery, using USB charging cable, charging faster and safer. 4. 0.25s high-speed foaming, 3-6 cm sensing area. 5. It can be used safely in wet environments such as washstands and toilets. Don't wash your body with water.