Ergoguys HPK-1520 Califone Headphones with In-Line Volume for PC/MAC<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Softer， more comfortable ear cushions </span></li><li><span class="a-list-item"> Comfort strap for longer wear ability </span></li><li><span class="a-list-item"> Adjustable head strap rugged enough for daily classroom use </span></li><li><span class="a-list-item"> Ear cups offer the highest passive ambient noise rejection， effectively blocking external distractions to keep students on task </span></li><li><span class="a-list-item"> In-line volume control， LED light is green when the cord is plugged into the computer and red when the Sentinel switch is turned on </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41CFxD5oftL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41NXI5rgPGL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/5167ZHQIKLL.jpg" noproxy>