Smart wi-fi connected thermostat, works with amazon alexa, apple home kit, & the google assistant, home & away aware geofencing feature for effortless savings, smart scheduling with utility cost estimator, learning & adaptive smart tips, built in indoor air quality mode energy & run time usage reporting, free ios & android apps with easy scheduling feature, powered by c-wire or lux power bridge, for use with interchangeable decor snap covers, not included.