NW-E042

The NW-E042 is effectively the final model in Sony's tenth-generation E Series Network Walkman to use the Virtual Mobile Engine. It continued the detachable Style-Up Panel concept with a more rounded body redesign. With 2 GB storage supporting MP3, WMA, and AAC playback, it relied on a lithium-ion battery for 30 hours of use.

This model belonged to the same late E philosophy as the E053 and E063 generations but in a slightly more reduced and transitional form. Sony had already started stripping away the old software-era baggage, and the result was a player that felt lighter in every sense: simpler to use, easier to understand, and less burdened by format politics. The E line was calming down here.