[Smart Sensor] - When the snooze/light switch is turned on, the sensor light automatically emits soft light when the room is dark, which is very suitable for nighttime use; [Smart Alarm Clock] -- The gentle alarm will ring softly then gradually increase until you turn it off. You don't have to worry about the alarm clock being too loud; [More than just an alarm clock] - Information on the screen includes month, date, alarm clock settings and room temperature. You can set the time display in 12 or 24 hour format, and the temperature can also be switched between Fahrenheit and Celsius; [Large Screen Display] -- LED screen display, the size of 4.5*13.5*7.5cm is small and exquisite; [About the battery] - Since the current required by the alarm clock product itself is small, please choose a normal carbon battery with a small current in the battery selection. For example, using a rechargeable battery or a high-power alkaline battery may cause the alarm clock to exceed the charging capacity. The service life will be reduced.