This automatic soap dispenser has built-in precise infrared motion and PIR sensor detection technology. The high-efficiency pump only needs 2 seconds to dispense soap, 1 ml each time. If you need more, please hold it under the sensor and wait for 2 seconds The non-contact soap dispenser adopts IP67 waterproof design, and the whole machine can be cleaned, which helps prevent the battery box from being immersed in water and causing corrosion. The bottom adopts non-slip design, strong sealing This kitchen soap dispenser can hold 400 ml of liquid soap, and the visible scale of the soap tells you when to add the soap liquid. Non-contact soap dispensers can be used in kitchens, bathrooms, hotels, hospitals, and are compatible with most liquids The automatic soap dispenser requires 4 AAA batteries(not included). When installing, please confirm the "+" and "-" signs of the battery and soap dispenser for correct installation. You can use rechargeable batteries with this product Note: When using for the first time, you need to sense the non-contact soap dispenser 2-3 times to pour the soap into the straw; it is compatible with all kinds of conventional dish soap, liquid hand sanitizer or body lotion, and the nozzle will not produce gums colour: silver Material: ABS Package Contents: 3 x soap dispenser Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.