Rotate the hand crank and you can enjoy the beautiful music. It is a mechanical music box which does not need battery to power. Music box is not only a music box, but also a jewelry storage box. The ballerina girl can spin 360 degrees. The binary star pattern is lovely and adorable, showing great ingenuity. Music box can be a nice decoration in your room or placed wherever you like. Girls Mini Music Box Rotary Ballerina Girl Jewelry Storage Box for Kids Childrenwhite - B07MBZF4FHL