Features: 100% brand new and high quality Applicable to new and old gas water pipeline valves, no additional piping, users can install it themselves. Two connection methods, when WiFi is abnormal, you can use BT to connect for close-range control. With timing function, you can set the time to automatically open or close the valve. The Zigbee smart valve compatible with Amazon Alexa and Google-Home Assistant, allows you shut-off/on your water valve via your voice.Remote control can also be carried out using the mobile phone 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. Package Includes: 1 Set Smart Valve Specifications: Material: Plastic + Metal Plug: European Standard/American Standard/British Standard Size: Approx. 9x8cm/3.54x3.15inch Power Supply Voltage: 12V/1A Communication Technology: Wifi Communication Frequency: 2.4g note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.