WiFi Connectivity: Connects to your home WiFi network, allowing you to monitor temperature and humidity from anywhere using your smartphone. Voice Control Compatibility: Compatible with for Alexa and Google Home Assistant, allowing you to control the temperature and humidity with your voice. Backlight Display: The backlight display makes it easy to read the temperature and humidity levels, even in low light conditions. Temperature and Humidity Sensor: The temperature and humidity sensor provides accurate readings, ensuring that you can maintain a comfortable environment in your home. Power supply:battery AAAx3 (battery not included) Backlight:support Wireless:WiFi 2.4GHz IEEE 802.11 b or g Temperature range:-9.9C-60C Accuracy temperatures: 1 Humidity measurement range:10 percent RH-99 percent RH Humidity accuracy:5 percent RH Weight:64g Notes: 1. Bluetooth is only used for network signal connection and cannot be used alone. 2. This product is powered by batteries and does not include batteries Colour:White Material:Plastic Size:5.6x5.6x2.3CM Package Contents: 1 x Temperature Humidity Sensor Only the above package content, other products are not included. Note: Light reflection 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.