Ultrasone DJ1 PRO S-Logic Surround Sound Professional Closed-Back DJ Headphones with Transport Box<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Logic Natural Surround Sound </span></li><li><span class="a-list-item"> Dynamic principle </span></li><li><span class="a-list-item"> Frequency Range 10 - 22.000 Hz </span></li><li><span class="a-list-item"> Impedance 64 Ohm </span></li><li><span class="a-list-item"> Sound pressure level 102 dB </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41f4MigF9oL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41pnoZkQV5L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31gDpx%2B-OeL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41OQWbH9L5L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41-pFQJ-TkL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/11fChJ3nHZS.png" noproxy>