Musical mobiles are decorative hanging toys designed for infants and young children. They typically feature colorful shapes, animals, or characters that rotate slowly while playing soothing melodies. These mobiles are often attached to cribs or play areas, providing visual and auditory stimulation to engage babies. The gentle movement and calming music can help create a relaxing environment, making it easier for babies to fall asleep. Many musical mobiles also include features like lights or remote controls, allowing parents to customize the experience. They are popular items in baby nurseries and are often given as gifts for new parents.