The Lux Products App works seamlessly with the Google Assistant to provide voice control over your Lux thermostats. You can do things like change between heating and cooling, chose a set temperature or turn on your system fan. Lux thermostats will only work with Google Assistant if you are using a permanent power supply. For LUX/GEO users with battery only power, you will not be use Google Assistant with your thermostat. Please contact Lux Products for additional support.