http://www.youtube.com/watch?v=X6dp-ds1Ht8

Toshiba, Sanyo?......not sure.

Got it! It's a National One More cassette player. eBay 140712096055.

Deffo, RCAs give it away. 

I have this similar unit at the Towers somewhere...

Got a feeling it was the RS-J3, which was in fact Panasonic's first walkman.

There is  Lasonic 931 aslo