Features and Specifications:1)Display of perpetual calendar(2000-2099)， time date and week.2)Thermometer: Shift between centigrade temperature and fahrenheit temperature(0��~50��，32�H~122�H)3)Shift between 12-hour and 24-hour modes4)Alarm of chords/natural sounds5)Function of snooze6)Function of countdown (timing from 00:00:00-23:59:59 hours)7)Function of time music appreciation. Music appreciation mode8)Dynamic projection of colored starry sky accompanied with music rhythms9)Backlight function10��Adaptor Input / Battery Type: 3 x AAA Batteries (Batteries are not included)Package include:1x Lens Projection Alarm Clock1x English User Manual