Koss Pro4AAT Titanium Pro Headphones<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Titanium Coated High Polymer Titanium Diaphragm for Accurate Sound Reproduction </span></li><li><span class="a-list-item"> Oxygen Free Copper Voice Coils for Signal Clarity </span></li><li><span class="a-list-item"> Closed Ear Cushions for Maximum Bass and Isolation </span></li><li><span class="a-list-item"> Stereophones， with 3.5mm plug， and 6.3mm adaptor </span></li><li><span class="a-list-item"> Adjustable Slide Bars Ensure A Snug Fit </span></li><li><span class="a-list-item"> Closed Pneumalite Cushions Form A Positive， Comfortable Seal Around The Ears </span></li><li><span class="a-list-item"> Freq Resp: 10 Hz-25 Khz Imp: 250 </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41efgZZnc-L.jpg"><img src="http://ecx.images-amazon.com/images/I/41efgZZnc-L.jpg"><img src="http://ecx.images-amazon.com/images/I/41o5sMTX5RL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31DNWEiPE8L.jpg" noproxy>