A flash based MP3 player, with 4GB of storage, up to 50 hours of battery life, line-in recording and an FM tuner. Sony claim this is the 'best sounding walkman ever' - it has noise canceling technology, and it comes bundled with professional-quality headphones.

Sony NW-S700F

The display is a 3-line color PMOLED, that can display CD jacket (small images)

OLED type: 

3-line color PMOLED display