Evolution of Portable Music Players By kristenplazas Jan 1, 1954 Transistor Radio Regency Tr-1 Portable music started in 1954 with the Regency TR-1 transistor radio. Period: Jan 1, 1954 to Mar 21, 2016 Music Players Over the Years Jan 1, 1955 Raytheon 8-tp-1 The second transistor radio Jan 1, 1972 Stereobelt The first portable personal stereo audio cassette player Jan 1, 1976 Boombox Jan 1, 1979 Walkman Jan 1, 1984 Discman Jan 1, 1992 Minidisc Jan 1, 1998 Mpman Jan 1, 2016 Ipod 2001-Present