Programmable thermostat: easy to set schedules, temperature (-20 ~ 100 / -4 ~ 212 ) and countdown with your smartphone. APP remote control: you can control the smart socket via your smartphone's APP via a 2.4 GHz Wi-Fi connection. Control it anytime, anywhere.Hands-free voice control: compatible with / Assistant, allowing you to control connected devices with simple voice commands.Multiple safety guarantees: (1) Built-in fuse for overload protection and supports AC 100-260V input voltage, maximum load 15A. (2) Low voltage power supply to 3.5mm temperature sensor port, safe and without risk of electric shock. (3) Child safety socket.Wide use: applicable to portable heaters, infrared heaters, oil-filled heaters, electric fireplace heaters, window air conditioners, evaporative coolers, swamp coolers, etc.