Baby Musical Mobile with Rotating Hooks, Crib Mobile Motor, Music Box Spinner with 3 Modes, Nursery Mobile Motor with 35 Lullabies Adjustable volume levels: Crib mobile music box can adjust volume from 0 to 100. Humanized design: The lowest volume is equivalent to whispering, suitable for helping the baby fall asleep. The middle volume is equivalent to normal conversation, ideal when the baby is awake. The highest volume is relatively loud, perfect for playtime. Multi-scenario application: Lightweight and compact, easy to assemble and disassemble. The mobile motor measures only 5.5 inches, can be hung on a crib mobile arm during sleep time, and is portable for outdoor use such as picnics or shopping trips. Children's Lullabies: Listening to soft music before bedtime can help promote sleep and improve sleep quality. Appropriate melodies support healthy brain development in infants. Package Included: 1 x Baby Musical Mobile Note: 1. Due to differences in monitors and lighting effects, the actual color of the item may vary slightly from the images shown. 2. Please allow 1-3 cm measurement deviation due to manual measurement. (1 inch = 2.54 cm)