Retractable USB (movement too sensitive hair but not binding) Easy to use, after inserting one has the choice between a launcher (which can disable the automatic installation) that can install small games, utilities ( openoffice, winamp for multimedia) and some protection for the USB key file to enjoy it on any computer (compatible of course) or go directly to the file storage. You can also download other programs such as internet browser, games etc (the vast majority free) directly from the launcher (internet connection required 'of course')
In short: Fast delivery, unbeatable price (-30% compared to the price found in stores), friendly launcher. I am completely satisfied :)