Back in the 1920s, long before modern gadgets took over our daily lives, a nifty little invention brought music to people’s pockets. This wonder of the past was called the Mikiphone, a pocket…
That's a really innovative idea, and solves a lot of transportation problems since phonographs were usually stationary in a house.
However, the size doesn't fix the problem of carrying around 10" disks to play on it, so the setup is only as compact as its components. Still better than carrying around a cabinet, though!