Evolution of Mobile Music By rab5607 Apr 4, 1970 8 track player Jul 1, 1979 Cassette Walkman Nov 15, 1984 Portable CD Player Sep 15, 1992 Portable mini disc Jan 12, 1998 Portable MP3 Oct 23, 2001 First Ipod Mar 19, 2015 Our Phone is our Music Player
