A wonderful design with Barbie lighting up for a few minutes when you press a button or on the top of the clock. LCD backlit screen. Button to trigger Barbie-inspired sound effects! Alarm with 6 choices of ringtones. Press the top of the clock to stop the alarm or light up the screen and character. Snooze function. Low battery indicator. Power supply: 3 x AA / LR6 batteries (not included).