Hi.
When I googled Seige headphones I found myself on a site Celeb Headphones " a source for news, updates and reviews of all celebrity headphones" which seems to about what headphones are in fashion at the moment with celebrities. I recognised Justin Beiber and I think another is Snoopy Doggy.
It is unlikely there is a company called Seige who make headphones. They will buy in their cans from another maker and tart them up to look nice........
and charge £60, which is actually not too bad for a fashion statement. Only listening will tell if they are any good compared to competitors such as Sennheiser, who do bass heavy DJ headphones as well.