Amazon Smart Thermostat is ENERGY STAR® certified. According to EPA estimates, ENERGY STAR-certified thermostats save an average of $50 on yearly energy bills. Check with your energy provider about available energy savings rebates to save on your purchase. Plus, eligible customers can enroll in ongoing energy savings incentives with their energy provider to keep saving all year long. Get information in the Alexa app. Alexa does the programming for you, automatically adjusting the temperature to suit your preferences. The thermostat can even be set to your preferred temperature if Alexa has a hunch you’re home, away, or asleep. Link the Amazon Smart Thermostat to an Alexa-enabled device at home, and you can control your HVAC system with your voice. Not at home? Use the Alexa app or the Ring app to manually adjust the temperature, even on the go. Amazon Smart Thermostat is built with Honeywell Home Thermostat Technology and combines over 130 years of HVAC experience with the magic of Alexa. Amazon Smart Thermostat can automatically prioritize energy usage when CO2 usage may be lower with Alexa. 34% post-consumer recycled plastics in the product and accessories (Does not include installation tool). Amazon Smart Thermostat includes 0% bioplastics.