Features:*High Quality Material: The smart wirelessbutton is made of high quality material, durable and not easy to break, can use for a long time.*Apps or voice control: Through this smart wireless button, you can wirelessly control multiple home appliances, making your life more convenient.*Smart Home: Wirelessly control your smarts home, create various smart scenes, and link with any Zigbee smart device you like.*Two ways to use: One click to power on the ZigBee bulb, Double click to leave mode: Double click the knob button to turn off all lights, airs conditioners, fans and other electronic devices before going to work.*Smart Controller Scene Switch: After connecting to most Zigbee Hub to intelligently control devices, Zigbee hub requires its compatibility with Zigbee devices to be higher than other hub.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurementDescription:Material: ABSSize: 50*50mmPower supply method: CR2032 3V batterySize: 50*50mmControl range: 25m open areaWorking temperature: -1045Working humidity: <90%RHCommunications: Zigbee 3.0Note: This product can only be used when connected to a Zigbee gateways. The smart link is only for normal use by Zigbeesmart devices and cannot be used alone without Zigbeesmart devices.