It is easier to tell the difference after using it for so long now. The split sole is better than a full sole. These really worked great for what I needed them for. Range is great! I have owned at least 30 different headphones since 1974, and these sound as good as any of the $100 Sennheisers I had back when Elton Johns "Rocket Man" was new music. Not only is gaming more fun with better sound, but my gameplay has improved as well as Im completely immersed in sound during thunderous gunfights, but also able to hear the slightest of footsteps in my environment. -------------------------------------------------------------------------------------------------------------------------Original review: I had the exact same problem the other 2 reviewers had. No longer are our families outside conversations heard by the conglomerate of children in the neighborhood and far off other countries. I also wear 12. IT FITS PERFECTLY!