BYTECH - Metallic Stereo Earbuds w/mic - (Green/Black)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Tangle-free cable design </span></li><li><span class="a-list-item"> Built-in mic w/ call answer/ call end/ mute buttons allows you to seamlessly switch between calls and music </span></li><li><span class="a-list-item"> 3.5mm connector compatible w/ all mobile phones， music players. portable gaming devices and computers </span></li><li><span class="a-list-item"> Cable length: 4ft plus/minus 10%， Speaker size: 9mm </span></li><li><span class="a-list-item"> Frequency response: 20-20，000Hz， Sensitivity: 105dB plus/minus 3dB， Impedance: 320hm </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41Q%2BROFpzEL.jpg" noproxy>