Fangrui Product Details * 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. *mode Button: Song Switching Function, A Total Of 12 Music, Each Button Once To Play The Next Song; Do Not Press The Button Music Automatically Play To The Next Song. *volume Selection Button: These Two Buttons Have The Same Function, A Total 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. [arbitrary Volume]the Traditional Music Box Has 3 Levels Volume Options Only.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 Music]12 Lullabys, Which Can Be Switched At Will. Last One, Next One. Choose Your S Favorite Music And Go To Sleep Quickly. [user