KAKA(TM Alarm Clock, LED Colorful Dreamy Starry Star Moon Time Flash Light Projection with Music Clock Size:111*11*9cm(4.33*4.33*3.54 inch) It needs 3 x AA Battery (Battery is not included) Four natural sound songs and six chord songs for you to choose. Snooze function. countdown function. 12/24 hour conversion Dynamic projection of colored starry sky accompanied with music rhythms