Just piping in to say that I've received a pair of these in Hong Kong. (VSD2S)
Fit is very snug using the simple single flanges already fitted on them and the cable is free of excess tangle or microphonics.
As for the sound, rather than commenting on how these sound stock (other than "they're ok"), I offer you a portable foobar2000 package containing my sound tuning for the VSD2S when I listen to them:
https://www.dropbox.com/s/0ktqp37al4rzddi/foobar2000%20for%20VSonic%20VSD2S.zip?dl=0
Just unzip and run this version of foobar, load your music library on it and listen with the VSD2S or VSD2.
Here's some of my previous track record with headphone tuning
http://www.head-fi.org/t/726569/review-tour-somic-mh412-viper4android-the-put-up-or-shut-up-review-and-tour
This post brought to you by Joe Bloggs in his personal capacity as a head-fier, not as a FiiO representative