Cisco CP-7937-MIC-KIT 7937 Series VoIP Phone Microphone Kit<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> The microphones extend voice coverage area and enhance speaker volume output. The CP-7937-MIC-KIT is an ideal solution for larger rooms or rooms with above average background noise. </span></li><li><span class="a-list-item"> Room Coverage of 30-40 Feet </span></li><li><span class="a-list-item"> External Microphone Kit for CP-7937 </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/11FmNITFaJL.jpg" noproxy>