2008 NW-A828
The NW-A828 is a Network Walkman with flash memory, part of the 4th generation A series.
2013
NW-S784
The NW-S784 is a Network Walkman part of the 11th generation S series. It has 8GB of built-in flash memory and supports audio playback in MP3, WMA, AAC, and WAV formats. It has a TFT display and is powered by a lithium-ion battery.
