When the mobile is attached to the crib baby can look at three discs that flip inside of brightly colored rings In long play mode the mobile rotates with projection and pulsing lights for 10 minutes The 3 soft toys with rattle, crinkle, and jingle can then be attached to the base for baby to play Part of Fisher Price Mobile Collection Play 4 lullabyes or 4 classical tunes From the Manufacturer The Fisher-Price Mix & Match Musical Mobile can be customized for newborn and older baby play. When the mobile is attached to the crib baby can look at 3 discs that flip inside of brightly colored rings that offer black and white patterns for the newborn Product Description Change this mobile to suit your baby's age and mood, anytime! Combine soft lights, motion and music, choosing four lullabies or four classical favorites for up to 10 minutes of continuous play. Switch on a light show that dances on baby's ceiling. Flip reversible discs from high-contrast, black-and-white patterns to bright, colorful graphics. When baby outgrows the mobile, just remove that part and keep the music box on the crib and the projection on the ceiling. Measures 16.5"W x 22"H x 22"D. Requires 3 "C" batteries, not included.