Keep the temperature comfortable with the RTH6580WF Wi-Fi Smart Thermostat. Flexible programming lets you regulate temperatures how you want and since it's controllable via app, you can stay connected to your thermostat wherever you go and make changes to your temperature settings on the fly. For easy control, it comes with a large, easy-to-read digital display, a real-time clock, permanent/temporary hold and precision accuracy within +/- 1°F. ENERGY STAR CERTIFIED: Help save energy, track your heating and cooling with monthly energy reports and get personalized tips on reducing energy use. THERMOSTAT THAT FITS YOUR LIFE: 7-day, 4 periods per day, flexible programming lets you sync your comfort with your schedule. EASY OPERATION AND INTUITIVE: Big, backlit digital display and easy controls make for a user-friendly experience. SMART HOME INTEGRATION: The Wi-Fi 7-Day is compatible with voice assistant devices like Amazon Alexa, Google Assistant, Microsoft Cortana, and more. EASY-TO-USE-APP: Control your Wi-Fi thermostat anytime, anywhere and get air filter change reminders, temperature notifications, internet connection alerts, and more. SMART RESPONSE TECHNOLOGY: Learns your heating/cooling cycle times to deliver the right temperature when you want it. Eligible customers can enroll in their local Utility's DEMAND RESPONSE PROGRAM which can reward you for allowing the utility to slightly adjust your AC or furnace temperature settings when there is high energy demand. COMPATIBLE WITH: Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup (C-Wire required) Does NOT work with electric baseboard heat (120-240V)