3 modesThis crib mobile music box is different from other motors. It has 3 modes, only rotation and only music. Rotation and music at the same time.UNIQUE in the market.Arbitrary volumeThe traditional baby music box has 3 levels volume options only. FEISIKE crib mobile motor adopts stepless volume, you can choose the most appropriate volume from 0 to 100. Farewell to the traditional mobile music box.Soft music12 lullabys, which can be switched at will. Last one, next one. Choose your baby's favorite music and go to sleep quickly.User friendly designAutomatic shutdown after 30 minutesCompatibilityFit most crib mobile hanger,crib mobile arm.2 AA batteries are required, not included.We are responsible for the product, and contact the seller for product problems and technical support.