Sony MDR110LP Open-air Stereo Headphones<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> 3.5 double sided cord， 1m in lenght </span></li><li><span class="a-list-item"> Frequency response: 18Hz-20 kHz， 100 Mw </span></li><li><span class="a-list-item"> Ultra lightweight， open-air design </span></li><li><span class="a-list-item"> 30mm Speaker drivers with ferrite magnets </span></li><li><span class="a-list-item"> Sony Acoustic Turbo circuitry for extended bass response and clear treble </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41Q0D0P2EBL.jpg" noproxy>