[Health and hygiene]: the automatic infrared sensor quickly checks the water supply and the closing of the tap. Non-contact type to avoid bacteria cross-infection. It is very suitable for families and large public places, such as shopping malls, schools, stations, hospitals, etc. [Energy Saving]: The valve control box induction is suitable for alternating and direct current. It is powered by 4 AA batteries (without batteries) and can be used about 7000 times, which means it can be used to home for almost 2 years. [Fabricé with precision]: the valve is manufactured made of high quality pure brass, resistant to corrosion. corrosion, difficult to rust and durable. Honeycomb water outlet, gently discharge water, reduce splashing and water consumption. [Advanced Design]: Chrome surface, smooth and delicate, easy to clean. to clean. Its superb craftsmanship and classic modern styling blend seamlessly into any bathroom. [Easy to clean. install]: Supplied with all necessary installation