Upgrade your home's thermostat with the Google Nest WiFi Thermostat in Charcoal. This programmable device features a round shape and wall-mounted design, allowing for easy installation and app control. With smart home compatibility for Google Home/Assistant and Amazon Alexa, you can easily adjust the temperature with your voice. The thermostat is compatible with universal heating and cooling systems, including heat pumps, wall heaters, central heating radiators, and underfloor heating. It features temperature sensor technology, thermal and freeze protection, and is powered by a low voltage 24V system. The device comes with batteries, a display base, and wall screws.