If you place your hand under the sensor area for 1 or 2 seconds, the liquid soap will be distributed one or twice. By limiting the volume level, and automatically avoiding duplication. [lightweight and easy to install] thanks to advanced infrared sensor technology, you can get liquid soap simply in placing your hands under the soap dispenser. Since it is not necessary to touch the pump, this can effectively reduce the risk of propagation of bacteria by contact. [Easy replenishment] Large capacity, no need to add frequently liquid soap. The transparent bottle is easy to fill and clean, and the anti-drip valve prevents soap from dripping and clogging. [Anti-leakage] The soap dispenser has an anti-leakage and waterproof technology, which can prevent soap or water corroding the printed circuit. The waterproof base prevents the case from the battery from being immersed in water, which can cause corrosion. [widely used] It can be used in bathrooms, kitchens, bedrooms, offices, schools, hospitals, hotels and even restaurants. Operation: 1. Open the lower cover and insert 4 new AAA batteries. Stop betting. 2. Open the lid. When first use, add water to get the air out. Fill the soap container and screw the upper cap. 3. Long press the On / Off button at the top - you will see a flashing blue light - the unit is now on. 4. Place your hands under the dispenser and the pump will distribute soap. Manual instructions for use: 1. Before moving the soap dispenser, make sure it is closed. 2. If you do not use the device for a long time, please empty the soap and remove the battery. 3. Please check if there is no battery. If the soap dispenser does not work, try installing a new battery. 4. Do not use high viscosity liquids such as foam soap and soap particles. 5. Avoid direct sunlight on the infrared panel. Delivery Quantity: 1pc Package Contents: Only the above package contents, excluding other products. Batteries are not provided. Size: 7*7*18.8cm (Reminder: The size is measured manually, please allow 1-2 cm measurement error) color: White (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)