* Switch on/off button: Button for play/pause function. Press the button once to play music, and press again to stop. Motor operates in sync with music: rotates during playback and stops when paused. * Mode button: Allows switching between 12 built-in songs. Each press advances to the next song. Music plays automatically from the beginning if no input is given. * Volume selection button: Two buttons with identical functions. Cycle through high, medium, and low volume levels with each press. * Arbitrary volume control: Unlike traditional baby music boxes with limited volume settings, this crib mobile motor offers seamless volume adjustment from 0 to 100, allowing precise sound level customization. * Soft music: Features 12 soothing lullabies that can be freely selected. Play one after another or choose a favorite to help your baby fall asleep quickly. * User-friendly design: Automatically shuts down after 30 minutes to conserve power and prevent overuse. * Compatibility: Fits most crib mobile hangers and arms. Requires 2 AA batteries (not included). * Color: White * Material: ABS * Size: 14 x 9 x 35 cm * Package Contents: 1 x Music Box * Note: Light reflection and differences in display screens may cause slight variations between the color shown in the image and the actual product. Measurement error allowance is +/- 1-3 cm.