* On/Off Button: Button for play/pause function, press the button to play, and then press the button to stop playing; the motor works synchronously with music: the motor rotates when you play music, the motor stops rotating when the music pauses. * Mode Button: Song change function, one of 12 songs, each press of the button plays the song; if you don't press the button, the music will automatically play to the end of the song. * Volume Button: These two buttons have the same function, one with high/medium/low 3 levels of volume, each press of the button will switch the volume between high/medium/low 3 levels to choose from. [Arbitrary Volume] Baby has 3 levels of volume only. Crib mobile motor adopts stepless volume, you can choose the most suitable volume from 0 to 100. Say goodbye to the mobile music box. [Soft Music] 12 lullabies, which can be switched at will. Find your baby's favorite music and help them fall asleep quickly. [Friendly Design] Automatic shutdown after 30 minutes [Compatibility] Fits most cribs, mobile cribs. Requires 2 AA batteries, not included. Color: White Material: ABS Size: 14 x 9 x 3.5 cm Package Contents: 1 x Music Box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm.