Walkmans in World War 2

Did you know they had walkmans in WW2? I sure as hell didn't. They were called mikiphones, and were a very small gramophone, the size of a cheese tin. Pretend you know how small a cheese tin was. As small as a large pocketwatch apparently. You couldn't exactly tuck it in your pocket and go for a run but it was small enough to put in your pack and I absolutely want one.