Creative Labs NOMAD Jukebox Zen (USB 2.0) High-speed file transfer via USB 2.0 or Firewire (IEEE 1394) 14-hour rechargeable Li-ion battery Support for MP3 and WMA file formats; stores up to 5,000 songs (MP3/128 kbps) Fits easily into a pocket Requires Microsoft Windows 98SE/ME/2000/XP