iRiver has unveiled the new M31 Shining and M41 Revolve MP3 players. The entry-level iRivier M31 is actually a 2-in-1 MP3 player and USB storage device. Measuring 80.5mm x 26mm x 11mm and weighing at around 22grams, the gadget comes jam packed with a tiny OLED screen (128 x 32) and supports MP3, WAV, and WMA file formats.
Meanwhile, the iRiver M41 packs a nicely-sized 1.8-inch display with support for both audio and video playback. Measuring 8mm x 8mm x 40.4mm and weighing at 45grams, the player supports MP3/WMA audio files and AVI video files. Its battery provides up to 15-hour of continuous audio playback or 4-hour of continuous video playback.