Automatic soap dispenser, touchless, no cross infection, Clean and Safe. Hold hands and dispense 1ml of liquid each time. If a large amount of liquid is needed, leave your hand and drain 1 ml of liquid again after 2 seconds. DON'T use too thick liquid. Leak Prevention / Waterproof: Make sure the sensor screen is clean.Sealing ring is attached not only to the battery box lid but also to the top spout lid for excellent waterproof function. The waterproof base protects the battery case from water. Use AAA waterproof and leak proof technology to prevent circuit board corrosion by soap or water. Low Noise MotorAdopting premium miniature high-efficiency motor, power consumption is lower than the similar products on the market, and also more quiet when working. Excellent silence makes children more enjoyable with hand washing. Waterproof &200ml Capacity: The latest design of the waterproof base prevent dispenser and battery case from water corrosion. Suitable for using liquid soap, dish soap, body lotion, shampoo, shower gel, hand cleaner. Battery operation and waterproofThe automatic soap dispenser is powered by 4 AAA batteries (not included), and is waterproof, which can prevent the battery box from being corroded when immersed in water and has a longer service life.