APEX HPDJ1 Closed Ear Folding Stereo Headphones<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Type: Closed Dynamic Headphones </span></li><li><span class="a-list-item"> Frequency Response: 5Hz to 30，000Hz </span></li><li><span class="a-list-item"> Impedance: 64 ohms (+/- 15% @1000Hz) </span></li><li><span class="a-list-item"> Driver: 57mm Neodymium Magnet Drivers </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41w2j7JQPpL.jpg" noproxy>