This musical crib mobile is designed to soothe babies and support early development through gentle entertainment. It features 150 melodies including lullabies, instrumental music, baby songs, and nature sounds with adjustable volume. The soft night light and star projector create a calming atmosphere with two projection modes: steady-on and flashing stars, moon, and hearts. The colorful rattles and music box rotate 360 degrees to help develop your baby's color perception, motion tracking, and visual engagement. The mobile includes a convenient timer function with 20, 40, or 50-minute settings that automatically turns off the device. A quiet remote control allows parents to adjust all functions without disturbing the baby once asleep. The adjustable buckle fits most standard cribs and carriages with rails measuring 2 to 4.5 centimeters. Requires three AA batteries for the main unit and one CR2025 battery for the remote control, neither included. This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm under Proposition 65.