Complex sentence: The Sansa Clip + proved popular with audio enthusiasts and programmers because of its very low cost, excellent DAC, and relatively mature rockbox port, which substantially improved battery life and added features such as parametric EQ, completely gapless playback and AAC audio playback.
Split into simpler sentences: The Sansa Clip + proved popular with audio enthusiasts and programmers because of its very low cost, excellent DAC, and relatively mature Rockbox port. Rockbox substantially improves battery life and adds features such as parametric EQ, completely gapless playback and AAC audio playback.