Equipped with ir sensors, soap could be dispensed in 0.25 second hand to sensors area and get soap Suitable for multiple occasion, such as home, hotel, school,, and other place Dispenser operates on 4xAAA batteries ( not included), which can be used in any occasion on power outlet 3 soap volume designed 1-2.5ml for option; power button to switch soap volume Designed with stainless steel, this kitchen soap dispenser is attractive and, easy to clean The soap dispenser also comes with leak-proof and waterproof technology to soap or water from corroding circuit board