Welcome to Lenoviva Technology co.， LTD store product feature: Thermometer: shift between Centigrade temperature and Fahrenheit temperature. (0°C-50°C， 32°F-122°F) Function of countdown(timing from 00:00:00-23:59:59 hours) Backlight function Timed music appreciation function Material: ABS plastic The light color will change with music rhythms Dynamically projects a starry sky accompanied with music rhythms Display of perpetual calendar (2000-2099)， time， date and week Powered by 3 x AAA batteries (included) LCD screen powered by 2 x AG13 batteries (included) Alarm of chords/natural sounds Snooze Shift between 12-hour and 24-hour modes Music appreciation mode helps relieve your pressure and fatigu Package Content: 1 x alarm clock