Voice control You just speak the command directly, it will execute immediately. Suitable for many kinds of environment used for household water supply pipe, farmland irrigation pipe, garden irrigation pipe, farm water pipe, etc. Remote Control You can connect WIFI through the Free "Smart Life" app. control the opening or closing of the water valve even when you are away from home. Humanized setting In order to prevent power outages caused by the inability to use, there is a manual clutch at the bottom of the unit with a pull ring, which allows to move the lever to close or open the valve. Easy Installation Just need screw to fix over your existing levered ball valve, no addition plumbing required. With specially designed metal clamping ring, it is adjustable to compatible with most widely used pipe size like 1/2", 3/4", 1", 1 1/4", 1 1/2"., Manufacturer: HIJYMNZPQ