Enhance Your Baby's Auditory Ability: The crib music box emits bright sounds while your baby sleeps, stimulating your baby's auditory and tactile senses, helping to soothe a crying baby and improve their musical knowledge. The baby will fall asleep to the sweet and beautiful melody from the music. Easy to Install: This music box is designed to hang on the crib frame, easy to install. The lower hook can hang a small plush doll, and the baby will fall asleep to the sweet and beautiful melody. Easy to Use: The spring music box requires no extra batteries, just turn the rotating switch and listen to the sweet melody. Your little one will love playing with the music on the bed, it will make him happier. Excellent Workmanship: The crib music box is simple in workmanship and simple in design, attracting children and helping them learn music. Help soothe crying babies and improve the baby's musical cognition. Package includes: crib music box *2 Highlights: 1. Product size is manually measured, there may be errors. 2. As different displays show different colors, please refer to the actual color you received. 3. Please confirm the size before purchasing.