45 minute timer ensures complete darkness during your child’s deep sleep, as recommended by pediatricians. Projects actual star constellations in 3 soothing solor options: blue,gree, and red. Option to automatically morph through all 3 colors. Twilight Ladybug Constellation Star Guide helps you point out the " Dippers" and "Ursa's" twinkling above you. 3 "AAA" batteries (Yes! Batteries are included).