The OK to Wake! Nightlight & Sleep Trainer Clock from Onaroo lets kids know when it is OK to get up, giving parents much needed shut eye. The night light is a comforting yellow during the night time & when it is time to get up the night light turns green. The clock employs a gradually ascending tone to gently wake your child. To conserve battery power the light turns off after a set amount of time (max two hours). For older children this clock can be used as fully functioning alarm clock with a 10 minute snooze feature. Product features Toe shaped controls Dual colour night light Auto off feature Nap timer (up to 24 hours) Clock winks whenever alarm is on Adjustable wake volume & light Interchangeable LCD face plate (pink flower & green bug included) Concealed parent control panel Batteries: Requires 4 AA batteries, not included.