Get more control over your comfort. Preset your ideal temperature around your schedule and adjust it away from home through the CYNC app. Turn up the heat or cool down the room from bed using your voice and a Hey Google or Amazon Alexa device (sold separately). Set schedules in the CYNC app so you can cool the house down before bed and wake up to a warm room. The CYNC Smart Thermostat is compatible with most residential heating and cooling systems. Add CYNC Room Temperature Sensors (sold separately) and set your preferred temperature in the room you're in during different times of the day.