Sweex Yarvik Run MP3 Player 4 GB Red. Player media type: Flash memory, Total storage capacity: 4 GB. Audio formats supported: MP3, WMA, OGG. Headphone frequency: 20 - 20000 Hz. Continuous audio playback time: 5 h, Battery technology: Li-ion, Battery capacity: 130 mAh. Weight: 13 g, Depth: 44 mm, Height: 12 mm