Large size LCD display perpetual calendar.Smart light function: Smart light technology uses a kind of soft light to see the time at night, but it will not glare and affect sleep. More importantly, it saves electricity, and the smart light can be switched freely.With temperature display, Fahrenheit and Celsius can be converted at will. (This feature is not available in the market smart clockWith the alarm clock snooze function: When the ringer sounds, press the top button, the ringtone will stop, and will continue to sound after 5 minutes; the alarm ringtone will fade.Soft blue or white background night light, perpetual calendar, 24 hours / 12 hours conversion.Extremely simple operation settings, you can operate the settings without looking at the instructions.