Koss Pro4S Full Size Studio Headphones， Black with Silver Trim<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Design Your Music with these professional， unbiased， fine-tuned Studio Headphones </span></li><li><span class="a-list-item"> Aluminum Construction - comfort and durability meet in this lightweight headphone </span></li><li><span class="a-list-item"> Dual Choice Entry - choose either left of right cord entry and monitor through multiple headphones with a unique pass-through feature </span></li><li><span class="a-list-item"> Contour Sealing Cushion - the unique D-profile closes gaps around the ear， improving comfort， fit， isolation， and sound </span></li><li><span class="a-list-item"> Koss SLX40 Dynamic Element precisely tuned to accurately convey the sound produced in the studio </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31rAgilqM%2BL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/419o958LKGL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41IUr1r1MjL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41IC1iQIseL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/413Ta26ewwL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51DYiZf0eTL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61Ky02AhWQS.png" noproxy>