Fangrui Product Details [lcd Display With Backlight] This Temperature And Humidity Infrared Controller With A Large Lcd Dispay Screen And The Backlight Can Be Open Or Closed By Your Needs. [voice Control] The Smart Wifi Thermostat Is Compatible With , Home. Just Simply Give A Voice To Your Or Home Assistant To Control Your Devices When You Are On Go. [app Remote Control] After Connect With Your Mobilephone Correctly, You Can Control The Controller And Your Air Conditioner On Your Mobilephone Through Tuya App, You Can Control It Easily Even If You Are Far Away From Home. [child Lock] This Infrared Controller Has The Function Of Child Lock, Which Can Effectively Avert The Setting Error Caused By Children Touching It. [usb Power Supplys] This Device Adopt Usb Power Supplys, Plug And Play, Very Convenient. [wide Applications] This Tool Can Be Widely Used In Your Home, Office, Living Room, Bed Room And So On. Power: Type-c, Usb, Direct Current 5v 1a Wiring Wifi: 2.4ghz Wifi Standard: Ieee802.11 B/g Max. Wireless Distance: 4