Smart Scenario Switches controls your home environment based on settings done on the Smart Life App. Some notable scenarios are: - Away from Home: Triggers siren when people open doors outside normal hours. - Movie time: Dim lights and turn on home theatre systems. - Evening mode: Turn on corridor lights automatically when the day is darker (based on weather condition as well, as it pairs with Google Weather. ALL PRODUCTS COME WITH 1 TO 1 EXCHANGE GUARANTEE FOR 12 MONTHS