Features: Premium material: Made of quality material, sturdy, practical, not easy to break, and can be used for a long time. Battery powered: powered by 2 AAA batteries (batteries not included), easy to use and can be replaced at any time. WiFi Connectivity :Connects to your home WiFi networks, allowing you to monitors temperature and humidity from anywhere using your smartphone. Voice Control Compatibility: Allowing you to control the temperature and humidity with your voice. Wide Application: Multiple temperature modes are adjustables and suitable for different scenarios. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: USB Power Input: DC5V Battery Input: DC3V AAA X2(Not Include) Static Current: 90uA Alarm Current: 40mA WiFi: 2.4G, 802.11 b/g/n Zigbee Standard: Zigbee 3.0 Detect Temperature: -10 C ~ + 60 C Detect Humidty: 0-100%RH Alarm Sound Volume: 55dB Installation method: Wall mounted/ Horizontal placement Working Temperature: -10~+60 Working Humidity: 90%RH Temperature error: 0.5 C Humidity error: 5%