A "music box" is a small, decorative box that plays music. It usually has a mechanism inside that you wind up, and when you open the box, it plays a beautiful tune.
Sentences with «music box»
Place a wind - up music box on your desk — the kind that plays when you open it and stops when you close it. (educationworld.com)
The suits make good replacements for leaves, mushrooms, and useless items (like music boxes) in your item list. (gamerankings.com)
Although its wind - up music box makes this mobile a bit old school, it's also what makes it charming. (romper.com)