iAudio U3 2 GB MP3 Player Versatile multi-media player supports MP3, WMA, ASF, WAV (including 48KHZ Stereo), FLAC, and OGG formats; FM radio and recording; voice and line-in recording Capable of 35 Mbps downloads and 20 hours of continuous play Earphones broadcast balanced tone and premium sound quality Includes USB 2.0 port; compatible with Windows, Mac, and Linux operating systems Dimensions: 1.24 x 2.83 x 0.71 inches (WxHxD); weighs 1.15 ounces