In an era when most technology arrives sealed and silent about its own workings, a small kit available on Amazon invites something older and more deliberate: the act of making. Designed for children but embraced by adults, this DIY Bluetooth speaker asks its assembler to understand a thing by building it — snapping pre-wired components into a cat-faced acrylic shell until music plays from something that was, an hour before, just a box of parts. It is a modest object, three watts and a whimsical design, but it points toward a quiet hunger in the market for participation over passive consumption