Klipsch X11 Worlds Smallest Lightest Earphone with Balanced Armature， Black/Grey<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Smallest and lightest in-ear headphone thanks to featherweight aluminum body </span></li><li><span class="a-list-item"> Full range balanced armature for audiophile quality sound </span></li><li><span class="a-list-item"> Superior noise isolation for amazing bass response </span></li><li><span class="a-list-item"> Patented oval ear tips for superior comfort， passive noise cancellation and enhanced bass </span></li><li><span class="a-list-item"> Increased durability and updated tangle free cable </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41RJYzvYjbL.jpg" noproxy>