Here's a list of features:

• Portability - small size, no setup needed.
   
• File type supports - This program supports (and will support) all the current and future file formats H300 supports.
  Currently, supported formats include .mp3, .wma, .asf, .ogg, irm
   
• Usibility - designed to be easy to use, with drag and drop support, easy to access buttons, convinient key shortcuts. if you can handle notepad, you know how to use this program.
   
• Move up/down with acceleration - want to move some songs to a different location in the playlist? Select the songs, hold the UP or Down button, and see how it gets faster as you hold it longer.
   
• Fast Shuffle/Sort - H3xx does not have random shuffle feature, this program allows you to randomly shuffle within a playlist. Sort features sorts a shuffled playlist in accending order, two sorting algorithm to pick from: Insertion Sort and the built-in .NET quicksort (just for fun).
   
• Filters out songs with 52 character - H3xx can not handle in a playlist any songs with file names greater than 52 characters, program generates a warning and ignores the song if the "Do not add long file names" option is checked.
   
• Hide/Show option - for About window on startup.
   
• Remembers the last window size.