Ortofon O-One Pro DJ Headphones for Studio and Mixing<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Closed design， Foldable </span></li><li><span class="a-list-item"> Frequency range: 10-20，000Hz </span></li><li><span class="a-list-item"> Sound pressure level: 112 dB </span></li><li><span class="a-list-item"> Impedance: 40 ohm </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41UtK-P3DvL.jpg" noproxy>