Yellow Duck automatic soap dispenser: detect and get the foam, touch for free. Green light: ON/Standby. Red light: off. The green light is the power on state. Press the upper switch, the indicator light will turn green, it means it is on. After that he will remain in the waking state. You don't need to turn it on again for later use, simply put your hand under the sensor to foaming. Automatic foam soap dispenser, non-contact use can free your hands, you do not have to touch it and it can distribute foam automatically. It is more practical and hygienic, suitable for use in kitchen and bathroom. High quality material, fashionable appearance, high durability, waterproof and moisture resistant performance, large capacity, wide filling hole. It can be used for several purposes. It can be filled with hand soap, dish soap, shampoo, body cleaner, face cleaner, etc. Infrared sensor allows quick detection and automatic 0.25 s foam generation will make hand washing convenient. The cute yellow duck cartoon allows children to develop a good habit of washing their hands. It is powered by 3 AA batteries (not included for shipping). A suitable battery compartment can protect batteries from corrosion. The switch of the upper sensor can control the distributor, the green light indicates the opening while the red light means the stop. It is recommended to use a mild liquid hand soap for this product. The foaming hand sanitizer can be filled directly, and the hand sanitizer should be diluted with water in a ratio of 1:3-1:6, or you can pour the hand sanitizer into the bottle to reach the ""Soap Liquid Position Line"" mark and then filled with water. Dilute regular detergent with water on the 1:3radio this foam soap dispenser can be supplemented with a hand sanitizer and a foam hand sanitizer. If you use a hand sanitizer to replenish it, it should be diluted in a ratio of 1:3 (original detergent 1: water 3). Or you can add the original detergent to the brand ""Soap Liquid Position Line"" on the body of the bottle and then fill with water. Please do not add solid or granular cleaning agent into the bottle. If you want the foam to be more diluted, you can dilute the original detergent with water in a ratio of 1:6.