Adding a mono feature (similar to the FM mono choice in the m series) would capture another market segment… anyone with hearing loss. As we get older, we all suffer hearing loss & Sandisk could attract a completely new demographic.
I purchased the m230 years ago, as it offered this mono feature, which iPods or other mp3 players did not have.
*It would be great if the mono feature would be for all the audio, & not just FM selection.
Please let me know if/when this is planned (I have more ideas)