Razer doesn't even sell those for $100. Rip off, and probably counterfeit as well. Those sell on razerzone.com ((Razer's official site)) for $60-$70 when not on sale. If the $30 pair is from one of those "Straight from China" dealers on Newegg or Amazon, probably counterfeit. Had to deal with one of those a few months ago. The manufacturer was having a sale as well, so I was only saving a few dollars, still counterfeits.