Full Details from Amazon.com : http://www.amazon.com/gp/product/B00AR790E8?tag=onigi-20

Mad Catz F.R.E.Q.5 Stereo Gaming Headset for PC and Mac

Precision-balanced extra large 50mm speakers for deep bass and crisp highs
Tough yet lightweight metal components enhance strength and reliability for extended comfort
Compatible with MP3 Players and Smartphones Apple iPhone BlackBerry and HTC handsets
Detachable noise-canceling microphone
Easy to locate on-ear controls