Don't judge a gadget by its outer casing. This might look like the kind of device that you—or, depressingly for us, your parents—used to make mix tapes on many moons ago, but inside lurks the ability to play tunes from Spotify.
Inside, you see, you'll find a Raspberry Pi hooked up to the speaker. Insert one of the cassettes, which actually contain NFC chips, and you'll activate one of several playlists. What's neat is that the analog buttons on the recorder—volume, play, next and stop—all work, too. It was put together by a British builder named Matt Brailsford. Matt, we salute you. [YouTube via CNET via Engadget]