[2 different amounts of liquid] When you place your hand under the sensor area for 1 or 2 seconds, the liquid soap will be dispensed once or twice (1 ml each).By limiting the volume to 1 ml each time and automatically avoiding duplication.[Lightweight and easy to install] With advanced infrared sensor technology, you can get liquid soap by simply placing your hands under the soap dispenser.Since the pump does not need to be touched, the risk of bacteria spreading through contact can be effectively reduced.[200ml capacity and easy refill] 200ml large capacity, no need to frequently refill liquid soap.The transparent bottle is easy to fill and clean and the anti-drip valve prevents soap from dripping and clogging.[Leak-proof] The soap dispenser adopts AAA level leak-proof and waterproof technology, which can prevent soap or water from corroding the circuit board.The waterproof base prevents the battery case from being submerged in water, which can lead to corrosion.[Widely used] It can be used in bathrooms, kitchens, bedrooms, offices, schools, hospitals, hotels and even restaurants.Operation: 1. Open the bottom cover and insert 4 new AAA batteries (not included).Stop betting.2. Open the lid.When using for the first time, add water to push out the sucked air.Fill the container with soap and screw on the top cap.3. Long press the "Power" button at the top - you will see a flashing blue light - the device is now turned on.4. Place your hands under the dispenser and the pump will dispense soap.