Able Planet Wired Headset for Universal - Retail Packaging - Matte Black<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Premium stereo speakers with patented LINX AUDIO </span></li><li><span class="a-list-item"> In Wire volume control for easy adjustment to safe listening levels </span></li><li><span class="a-list-item"> Compatible with In Wire technology - Including Linx Microphone </span></li><li><span class="a-list-item"> Frequency response - 20Hz-20kHz </span></li><li><span class="a-list-item"> Sensitivity at 1kHz: 100dB， Plug 3.5 mm </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41TBGg5DYOL.jpg" noproxy>