A music box is a small mechanical device that plays music when a key is wound. Inside, it contains a metal cylinder with pins that pluck the teeth of a metal comb, producing musical notes. Music boxes can vary in size and design, often featuring decorative cases made of wood or other materials. They are popular as gifts and collectibles. The history of music boxes dates back to the late 18th century, with early versions created in Switzerland. Over time, they evolved to include more complex mechanisms and a wider variety of tunes. Today, music boxes are cherished for their nostalgic charm and craftsmanship.