The E.D.G.E. GX400 provides unsurpassed response accuracy and noise isolation, enabling you to hear audio detail you previously didn't know existed. Experience how Enhanced Definition Gaming Earphones can take your gaming to a whole new level and give you the competitive edge. If you and your clan are looking for the best in competitive gaming earphones, the GX400's are for you. With exception sound clarity and external noise exclusion of 35 to 42 decibels you'll hear everything, allowing you to react to the subtle audio cues you've been missing. Your reaction times can improve dramatically. Hear the subtlest footsteps, and bust your opponent when they're trying to sneak up on you. You can hear the guy running along side the tank over the tank noise. That's accuracy. And that kind of accuracy gives you the E.D.G.E. 27 Ohms impedance, 122 dB SPL maximum output, balanced armature transducer. From E.D.G.E. Acoustics, developed by gamers for gamers. In Black.