Please read the description on these!
These are what was the original PS-500 shone at the SEMA show in Las Vagus google how many you think is in the world think google that's about it, they are my favorite I am in the military and it is hard carrying all the gear we have to carry so the only pair I am going to keep is my Weston 4s. If you know anything about headphones you will know you can't pump 1000 watts into them but sound is in credible on a Mac, iPod, iPhone , the sound is incredible. I had the box by grado himself in Las Vagus but my wife thought it was garbage and threw away, as you can see I have back ground the best I take music very serious I use these to play my drums
If you are advertising for your own sale, this should be posted in the For Sale section of the forum.