NikKTech posted a review on the Razer Blackshark Expert 2.0 Headset

With the release of Call of Duty Black Ops II, Assassins Creed III and Hitman Absolution (also Planetside 2 if you're into serious online FPS gaming) inside this month we found the excellent opportunity to test several gaming peripherals we had lined up. I mean what better way to test something that was designed and manufactured primarily for gamers (and by gamers in most cases) than to use it while playing the latest games to hit the market? I really can't think of anything better and although we have lots of things to test aside gaming peripherals and thus we can't really spend the largest portion of our day gaming still we did manage to log enough hours to complete the single player campaign of COD Black Ops II (the "concert" at the end was quite funny) and also get a good taste of the other three. Amongst all the gaming peripherals we tested was the latest and quite impressive Blackshark stereo gaming headset by Razer.

Razer is more than just the world's leading brand in gaming. We were founded in 1998 in San Diego, California by our CEO Min-Liang Tan and our President Robert "Razerguy" Krakoff in a tiny shared office with a couple other gamers. We have grown today to hundreds of employees worldwide with offices in nine cities, including San Francisco, Hamburg, Seoul, Shanghai and Singapore. Our vision from the very beginning was to be the world's greatest gaming brand and we've set out to achieve that by designing the best gaming products that any gamer has ever seen.

  Razer Blackshark Expert 2.0 Headset Review