Features:1. Voice Control :Control the thermometer with your voice using Alexas or Google Home.2. LCD Display:The thermometer has an LCD display that shows the temperature and humidity levels.3. ZigBees Communication :The thermometer uses ZigBees communication to connect to your home network and send data to your phone.4. Ready-to-Go :The thermometer is ready to use out of the box, no assembly required.Specifications:Communication modeZigBeesOperating temperature-10 degrees Celsius to 55 degrees CelsiusSupply voltageDC3VHumidity accuracy+3%RHNote:1. 2*AAA batteries are not included in the package because it will cause a trouble to shipment. Thanks for your understanding.2. it needs a Tuya Zigbees gateway(not included) as a bridge to connect it to app.Package included:1*Temperature And Humidity Sensor