1.[Multi-functional Crib Mobile] crib mobile features 433 soothing lullabies such as Imprints in the Rain,Blue Danube.You can control the volume level by remote control or music box; It is also an interesting projector, projecting light onto the wall or ceiling, presenting images of the animal world, the light is soft and does not hurt your eyes, your can give full play to their imagination in the magical projected images, and feel the magic of nature and the beauty of music. It can be fixed on the crib with a diameter of 0.79-1.65 inches. 2.[Rotatable Crib Toy]You can ly choose to rotate 360 degrees while the music is playing or continue to rotate with the music turned off.The gentle rotation of the mobile unit dances along with the 5 cute rattle toys to attract your 's attention.The 45-degree view angle won't make your child tired and helps babies' vision, concentration and intellectual development. Requires 3 x 1.5V AAA batteries (not included). 3.[Detachable Music Box and Rattles]The music box can be disassembled at will, use it as a standalone player or projector, very convenient for to play. Five rattles, including dinosaurs, lions, owls, foxes, and ball, can be removed for easy cleaning, made of and non-toxic materials, and 4 of the animal shaped rattles can also be used as teethers. Combining the music box, projector, teethers and rattles as one toy to satisfy your 's curiosity and accompany your child's entire childhood growth. 4.[Smart Timing & ]Our mobile unit can be set to turn off at a timer of 20/30/40/50 minutes to save energy and create an ideal sleeping environment for your . Also in addition to the buttons that come with the unit, we can also control it remotely with the equipped remote control, easy to operate.