NW-E052K

The NW-E052K added speaker support to the first Linux-based E Series model. It carries the eleventh-generation platform shift and plate-type design. With 2 GB storage for MP3, WMA, and AAC files, it uses an LCD display and 30-hour lithium-ion battery. WM-PORT, DSEE, Omakase Channel, Lyric Pita, and built-in speaker were included.

This player belonged to the same late E family but with a speaker-focused presentation layered on top. The core idea stays the same: simple transfer, compact form, and low-friction use. By this point the platform is stable enough that Sony could add compact variations without changing what the line is doing.