[APP Remote Control]Mobile phone APP eWelink remote control, you can shut or open the valve automatically far away from home. Make life more convenient and save time.[Voice Control]The Zigbee smart valve compatible with Amazon Alexa and Google Home Assistant, allows you shut-off/on your water valve via your voice.[Timer Function]Set timers to automatically open or close the valve. Applicable to new and old gas water pipeline valves, no additional piping, users can install it themselves.[Emergency Switch]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.[Wide Application]Compatible with water pipe ball valves, electric, manual control switches, and natural/liquid/tap gas, suitable for controlling water valves, natural gas valves, filling pools, farm watering plants.Plug Type: US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on.Colour: blackMaterial: metalSize: 65x70mmPackage Contents:1 * host1 * power adapter (US standard)1 * casing clamp1 * English manualOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.