Cowon M2 High Quality Sound 16GB MP3 Player with 90 Hours Battery Life - Black. The real successor to the Cowon D2. The M2 features a massive 90 hour battery life. Feature packed with music, video, fm radio, voice recording and picture viewing. The player also packs a built in speaker and the JetEffect 5 software to improve sound quality in compressed track formats such as MP3. And buy this Cowon M2 High Quality Sound 16GB MP3 Player with 90 Hours Battery Life - Black Now £109.00.