x switch on/off button: button for play/pause function, press the button once to play music, and then press the button once to stop playing; motor works synchronously with music: motor rotates when playing music, motor stops rotating when music is paused. <br> <br>xMode button: song switching function, a of 12 music, each button once to play the song; do not press the button music automatically play to the song. <br> <br>xVolume selection button: these two buttons have the same function, a of high / medium / low 3 grades of volume selection, each press the button once the volume will be cycled between the high / medium / low 3 grades to select. <br> <br>[Arbitrary volume]The traditional baby music box has 3 levels volume options onlycrib mobile motor adopts stepless volume, you can choose the most appropriate volume from 0 to 100. Farewell to the traditional mobile music box. <br> <br>[Soft music]12 lullabys, which can be switched at will. Last one, one. Choose your baby's favorite music and go to sleep quickly. <br> <br>[User friendly design]Automatic shutdown after 30 minutes <br> <br>[Compatibility]Fit most crib mobile hanger,crib mobile arm2 AA batteries are required, not included. <br> <br>Colour:White <br> <br>Material:ABS <br> <br>Size:14 x 9 x 35CM <br> <br>Package Contents: <br> <br>1 x musicbox <br> <br>Only the above package content, other products are not included. <br> <br>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.