Shure SCM410 4-Channel Automatic Microphone Mixer (110V) with Logic Control and EQ per Channel<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Increases the clarity and intelligibility of speech </span></li><li><span class="a-list-item"> Dramatically reduces feedback， reverberation， and comb filtering </span></li><li><span class="a-list-item"> Automates several rigorous operator functions </span></li><li><span class="a-list-item"> Minimizes set up time - plug and play </span></li><li><span class="a-list-item"> Frees up channels on the mixing console </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41F4d9W8YiL.jpg" noproxy>