Sony MDR7520 Professional Studio Headphones， Black<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> 50mm Driver Unit with LCP Diaphragm， Closed-Ear Design </span></li><li><span class="a-list-item"> Wide Frequency Response， High Power Handling Capacity 4，000mW </span></li><li><span class="a-list-item"> Stereo Unimatch Plug， Gold Connectors and OFC Cord， Supplied Soft Case </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41JqcYKKUzL.jpg" noproxy>