Cowon 4GB iAUDIO U3, Black. Player media type: flash-media, Total storage capacity: 4 GB. Display: LCD, Display resolution: 160 x 128 pixels. Audio formats supported: MP3, OGG, WMA, ASF, FLAC. Signal-to-Noise Ratio (SNR): 95 dB, MP3 sample rates: 48 kHz, WMA sample rates: 48 kHz. Continuous audio playback time: 20 h, Battery technology: Lithium Polymer (LiPo)