Mini SD card MP3 Audio format:MP3,WMA,WAV size:44x29.5x13.2mm color:green/red/silver/black and so on capacity:1G,2GB,4GB,8GB clip MP3,Clip MP3 player,clip music player System RequirementsHardwareIBM PC or compatible PC, Notebook or Macintosh with USB portOperation SystemWindows ME/98/2000/XP/Vista and Linux2.4/Mac OS9.0 above Function characteristicsUSB InterfaceUSB2.0 high speedCapacity128MB , ...