Stores up to 2,000 tracks. Up to 18 hours playback. DRM 10 compatible. Rechargeable via USB port. 3 line LCD display. Portable solid state. 4GB. MP3/MWA compatible. Normal/repeat/repeat 1 song/shuffle. 30 station presets. Software supplied. Minimum PC specification: Internet Explorer 6, Window Media 11, Windows XP, Windows XP Pro, or VISTA. 3mins quick charge for 90mins playback. The Zappin' playback function quickly finds any of your (up to) 2,000 tracks when exercising. Power illuminator flashes to the beat of the music. Voice recording, FM Recording and clear bass function. In ear headphones supplied. Battery supplied. Weight 26g. Size (H)8.5, (W)2.3, (D)1.4cm.