This musical crib mobile features five rotating flower rattles and twelve soothing melodies designed to help babies relax and fall asleep. The gentle rotation and soft music stimulate visual tracking and auditory development while creating a calming nursery environment. Parents can easily control the mobile with three convenient modes: music only, rotation only, or both together, allowing customization based on the baby's needs. The mobile includes volume adjustment so you can lower the sound once your little one drifts off to sleep. Simply press buttons to switch between melodies or adjust the volume level. The colorful felt flower rattles help improve color perception and motion tracking as they gently spin above the crib. Installation is straightforward and fits standard cribs with widths up to 3.5 centimeters. This product requires two AA batteries, which are not included. California Prop 65 Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.