【Touchless Faucet Adapter】: Turn your bathroom faucet into a smart Autowater Motion Senor faucet. Autowater activated every move when you wash hands. Convenient and clean. 【Save Water】: Free faucet supplies water as soon as hands are within sensing range, and stops when you move away your hands, reducing overall water usage without sacrificing water pressure. 【Easy Installation】 : Even if you're not plumber or handyman, installation is a breeze for any skill level with our instruction. Includes faucet mounting hardware, US standard thread fitting and cold/hot hoses. All the the parts for installing are included. No need to buy extra parts. 【Double-function】: Sensor powered by 4pcs AA Batteries (NOT included). Or you could choose to use the plug-in power.