Calendar function: 2000~2049, totally 50 years; Display: (1) simultaneous display of time and temperature (default) / (2) circular display of time & temperature and date; (3) simultaneous display of hour, minute and second; 12 / 24 hours shift; Fahrenheit / Celsius degree shift; Alarm function: 3 groups of alarms can be set every day; Snooze function: 5min for each time, totally 6 snooze times for you; 3-Mode brightness auto adjustment; Support voice control sensing function ("down" key).