LED, Display Calendar(2000-2099),time,date and week Thermometer: shift between Centigrade temperature and Fahrenheit temperature, Display minute & hour in 12-hour or 24-hour format Chord music/natural sounds alarm. Function of snooze. Function of countdown (timing from 00: 00: 00-23: 59: 59 hours)., Four natural sound songs and six chord songs for you to choose. Function of timed music appreciation. Music appreciation mode., Dynamic projection of colored starry sky accompanied with music rhythms. Backlight function.