I’d classify Mike Goode as a portable audio expert, as his collection is varied and large, and includes this Pioneer SK-21. Says Mike, “I can also tell you that the cassette boom-box initially appeared earlier than known here, I grew-up overseas in the old Panama Canal Zone, my father worked for the US. Government then. Panama due to the canal and commercialy strategic location was a re-distribution point for literally hundreds of Japanese brands being distributed through a free-zone to all of America, consequently, you could find a myriad of electronic products that never made it to the US.”