The Walkman ushered in the then-novel era of on-the-go music consumption, paving the way for portable CD and DVD players, MP3 players, PDAs, and, eventually, smartphones. ...Sony continues to ...

A handheld device with a built-in DVD drive and flip-over ... CDs can also be played, and players may support MP3 and other formats. See portable media player. THIS DEFINITION IS FOR PERSONAL ...