Compatible with for & for Google Home:Simply use your voice to control the connected devices by for or for Google Home. It can also auto control together with other smart devices which are compatible with for Smart Life. Convenient to detect your doors, windows, cabinets, drawers or anywhere you to notified when it is opened or closed. Enjoy Your Smart Life:When you leave home, it will push notification message to you when the door/window opens or closes, so you can discover the intruder in time. Furthermore, you could share the device to your family members and track the history of sensor activities. Easy to Install:No complicated installation tools are required. The sensor can be installed with double-sided adhesive tape or screws in just a few steps, and download an app "tuya" or "Smart Life" from for GooglePlay or App to add the device to detect the status of your door/window. Battery: AAA1.5V x 2 (Batteries not included) Protocol: IEEE 802.11b/g Operating Temperature: -10 Celsius-50 Celsius Operating Humidity: Max95% Wireless Type : 2.4GHz Colour:White Material:ABS Size:70 x 25 x 20mm Package Contents: 1 * Smart Window Door Sensor Only the above package content, other products are not included. Note: Light 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.