①. AUTOMATIC SOAP DISPENSER -- The soap dispenser with built-in sensor can automatically identify the closed hand and dispense soap liquid. The sensor distance is 2-3 inches. 1 ml of soap liquid is dispensed each time and holds the position for 2 seconds for another time. ②. Leak Prevention / Waterproof: Make sure the sensor screen is clean. Sealing rings are attached to both the battery box lid and the top spout lid for waterproof function. The waterproof base protects the battery case from water. AAA waterproof and leak proof technology is used to prevent circuit board corrosion by soap or water. ③. Battery operated without cord: Slim and compact without cord. Just open the bottom to expose the battery compartment, which requires 4xAAA batteries (not included) and can be used for about 6 months. ④. APPLICATION -- The soap dispenser is powered by four batteries (not included), without restricting the power cord, making it convenient to place anywhere. The soap dispenser is suitable for restaurants, hotels, kitchens, bathrooms, hospitals, etc. ⑤. WATERPROOF -- The soap dispenser has IPX6 waterproof function, which effectively prevents splash water from getting into the electrical internal component, suitable for bathroom use.