Trademark Revolutionary Jump Clock, Bounces: * Perpetual calendar (2000-2099) * Easy to read display shows time, date and day of week * Shift between 12-hour and 24-hour systems * Temperature: shift between Celsius and Fahrenheit temperature scale (0~50 Celsius degree, 32~122 Fahrenheit degree) * Count down timer function * Alarm and snooze function, it will jump when the alarm begins with music and green, red and blue LED light * Easy to access buttons for Mode, Set, Test, Up and Down makes it easy to set time, year, month, day and different modes and different functions * Requires 2 AAA batteries for the clock and 4 AA batteries for the motion and LED lights (not included)