Note: The voltage is 90V-220V, please confirm your local working voltage and then buy, thank you very much! There are three styles of the White Wireless WIFI Thermostat Touchscreen Gas boiler thermostat Electric heating Water heating We have two options: 1: You can choose one thermostat to control the temperature of a room, so for several rooms, you can purchase several sets of thermostats in receivers, and their temperatures can be set and controlled separately. 2: You can also choose multiple sub-receivers to be placed in different rooms to control the temperature of multiple rooms at the same time. A set of thermostat receivers, and then N sub-receivers (buy several for several rooms), So receiver 1, receiver 2, receiver 3, receiver 4... can be placed in different bedrooms. If there are several bedrooms, you can consider purchasing several controllers. They can be controlled separately, for example, room 1 and room 4 turn off heating, room 2 and room 3 turn on heating, but the temperatures in all rooms must be consistent because they are the temperatures set by the same thermostat. RF Wireless WIFI Thermostat Smart Thermostat Working principle: use the thermostat to control the receiver to control the indoor temperature! The thermostat can be installed in the bedroom living room dining room bathroom.. You can also use your mobile phone to control the thermostat from anywhere, whether at the airport, travel, or work, as long as your phone can be connected to the Internet. The smart thermostat cronotermostat can also control with your voice by Amazon Alexa and Google home! This wifi thermostat is the latest research product, it is really very convenient and smart! Have a great time shopping!