SeriesList of offical walkman series, families.
Sporty eco series
Sony first called their walkmans Stowaway in the UK, the Freestyle in Australia, and the Soundabout in the U.S. — but eventually it would become known everywhere as the Walkman.
Sporty, waterproof, strong (yellow) series.
Wireless series. Able to use with Wireless Headphones with the appropriate receiver.