This automatic touchless soap dispenser features a precise trigger zone that quickly senses your hand, just place your hand under the sensor to let the soap dispenser work. It pumps only 1 ml of soap at a time. If you need more, place your hand under the sensor and wait another 2 seconds and it will pump again. The soap dispenser requires 4 AAA batteries. When installing, please check the "+" and "-" symbols that the battery and soap dispenser are installed correctly. Press the bottom button. You will see the light flash. Now the device works fine. This soap dispenser can hold 300ML liquid soap, and the visible soap scale can tell you when to add soap liquid. The bathroom dish soap dispenser can be used in kitchens, bathrooms, hotels, hospitals without wall-mounted installation. Non-slip bottom. This hands-free soap dispenser is IP67 waterproof and the entire machine is washable. The bottom is anti-slip design and has strong sealing performance. The rubber material on the bottom of the soap dispenser prevents soap leakage and keeps the soap dispenser from sliding around your countertop. Color as shown in the picture Material: ABS Package contents: 1 soap dispenser Only the above package contents are not included, other products are not included. Note: Light and different monitors may cause the color of the item in the picture to be slightly different from the actual color. The measurement allowance is +/- 1-3 cm.