Sensor Soap Dispenser: Equipped with an infrared sensor, the soap dispenser automatically releases hand lotion when the sensor detects your hands. Perfect for your bathroom, kitchen, restaurant, hotel. Easy to use: there are no screws for the base and the top, allows you to install the battery and fill the liquid without using tools. Only the ON and OFF switch design can make you control the auto soap dispenser easier. Liquid Visible and Leakproof base: The dish soap dispenser is equipped with a semi-transparent window that allows you to easily see the volume of liquid inside and decide when to refill it. Designed with a waterproof base to prevent the battery compartment from being soaked in water which causes corrosion. Works with any soap: the soap dispenser is compatible with all kinds of liquids such as hand sanitizer and hand soap, dish dispenser soap, and it is also suitable for lotion and hand or body sanitizer. Package contains: 1 x 8.4oz or 250ML Soap Dispenser. (Powered by 4 AAA batteries not included)