Features 3 Covers provided MP3 / WMA / WAV audio playback FM radio Voice recording Negative LCD USB 2.0 full speed interface Specifications Format : MP3/WMA/WAV Ic : Sigmatel 3502/3503 Voice recording : Ima-adpcm (wav) format, 32 H for 512mb Fm radio : Auto / manual searching / fm recording / 30 presets stations / 87.5mhz - 108mhz Capacity : 256mb / 512mb / 1gb / 2gb Display : 96*26 negative / support id3 tag Osd menu : Multi language Play modes : Repeat one / repeat all/random/a-b repeat / shuffle/preview/normal Eq modes : Jazz / pop / classic / rock / bass / normal Compression rates mp3 : 8kbps - 320kbps Compression rates wma : 8kbps - 192kbps Frequency response : 20hz - 20khz Signal to noise ratio : 90db Firmware : Upgrade available Earphone output : Max. 9mw - 32ohms Battery : 1xAAA (about 10 hours in play mode) Operating system : Windows 98/me/2000/xp/ Mac os Driver installation : No driver installation required on Windows me/2000/xp/ Mac os 9.0 above Accessories 3 covers Neckless earphones USB cable Manual (CD) Quick guide Firmware upgrade