The Google Nest Learning Thermostat 3rd Generation is a white, wall-mounted unit that uses temperature sensor technology to regulate your home's heating or cooling. It can be controlled using the Nest app and is compatible with various smart home systems. This programmable thermostat from Google Nest is designed to learn your preferences and adjust settings accordingly, making it easy to maintain a comfortable environment in your home. With its sleek design and advanced technology, the Nest Learning Thermostat is a convenient and energy-efficient choice for any modern household.