Yamaha CM500 Headset with Built In Microphone<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Combines closed-ear， noise-reducing headphones with a sensitive electric microphone </span></li><li><span class="a-list-item"> Creates the ideal choice for audience-interactive DJs or school music labs </span></li><li><span class="a-list-item"> Crafted with high-impact materials and an ultra flexible headband </span></li><li><span class="a-list-item"> Withstands repetitive twisting and hard use found in music labs and on the dance floor </span></li><li><span class="a-list-item"> Frequency Response: 20Hz - 20kHz </span></li><li><span class="a-list-item"> Frequency Response: 20Hz - 20kHz </span></li><li><span class="a-list-item"> Impedance: 120 ohms </span></li></ul><!--   Loading EDP related metadata  --><div aria-live="polite" class="a-row a-expander-container a-expander-inline-container"><div aria-expanded="false" class="a-expander-content a-expander-extend-content" style="display: none;"><ul class="a-unordered-list a-vertical a-spacing-none"><li><span class="a-list-item">Sensitivity: 96dB/mW</span></li><li><span class="a-list-item">Mic Range: 100 Hz - 20 kHz</span></li><li><span class="a-list-item">Jacks: 1/8" and 1/4" adaptor</span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41GHRCsX4eL.jpg" noproxy></div></div>