iRiver just rolled out the iRiver E50 MP3 player measuring only 7 mm thick, with a nice brushed metal texture in front. It supports most of popular audio formats and FM radio. Each purchase of the iRiver E50 comes with a pair of earbuds and it’s available in 2, 4 or 8GB storage sizes. The player also offers a 1.8 inch display, voice recorder, and 52 hours of battery life.