Enjoy full-function stereo sound, Playback CDs, CD-R/RW and MP3 CDs with shuffle and program functions, Built-in cassette tape deck ... you connect digital music players MEGA BASS boost circuitry ...

In 1979, Sony introduced the Walkman, a small, lightweight and belt-worn audio cassette player that let a person comfortably listen to music via headphones while walking or running. The progenitor ...