... At the end of the tune there is a "surprise": the lid pops open and a figure, usually a ... clown or jester, pops out of the box. Some jack-in-the-boxes open at random times ... theory may explain why in French, a jack-in-the-box is called a "diable en boîte" (literally ... includes: single chip, consumer IC, electronic modules, sound module box, educational sound book, sound plush toys etc.2. More ...