Hercules Mobile DJ MP3 (Black Finish) - Wireless DJ Mixing Controller Mixes all MP3, WMA and WAV files Crossfader, 2 volume and pitch sliders, 25 controls DJing software included Requires 2 LR14 batteries (not included) Compatible with all PCs featuring a 800MHz Pentium III or Athlon processor (or better) and running Microsoft Windows XP SP2 or Vista