2.5in 16.7million colour TFT LCD screen. Stores up to 4,000 WMA tracks. 36 hours playback. 5 hours video playback. Rechargeable via PC-USB or external ZEN USB Power adapter. Size (H)5.5, (W)8.3, (D)1.2cm. Colour LCD display. USB 2.0 port. Portable solid state. 8GB memory. MP3, WMA, Non-protected AAC (.m4a) from iTunes Plus, WAV (IMA ADPCM), Audible4. Repeat, shuffle, play function. FM tuner bands. 32 station presets. USB cable supplied. Software supplied. Minimum PC specification: Microsoft Windows XP (Service Pack 2) or Microsoft Windows Vista. USB 1.1 port (USB 2.0 recommended). 130MB free hard drive space (more for audio content storage). Premium in-ear headphones supplied. Rechargeable built-in battery.