1、Support for Gregorian calendar month, day, temperature, hour (24-hour system), minute and week display, large digit display, hour display is 24-hour system. Displaying 1-12am in the morning and 13-23pm in the afternoon, clearly showing the time. 2、Support for six groups of birthday reminder functions, automatic temperature test and -9-50 ℃ temperature range. Support automatic brightness adjustment function, the brightness of the display will be automatically reduced by half every day from 22:00 to 7:00. 3、Support for 50-year perpetual calendar query function and date and time memory function, built-in battery, save time and settings, after power failure or unplug external power plug, you do not need to reset the date and time after re-powering. 4、Support for hourly on time alarm function (not reported from 22:00 to 6:00); when it is turned on, it has voice and music time telling at 7:00 to 21:00 every day, and the music of each time is different. 5、Support 8 groups of alarm clock function and report time when ringing, support setting different time, there will be ringtone and voice remind at the time, lasting 1 minute, more practical and convenient to use.