1.Display of perpetual calendar from 2000 to 2099, date, week) 2.Time shift between 12-hour and 24-hour 3.Thermometer diplay between Celsius and Fahrenheit (0-50℃, 32F-122F) 4.Timed music appreciation with 6 optional natural music and colorful variance(time:10mins, 20mins, 30mimore...