Wet Sounds WS-420 SQ - 4 Band Parametric Equalizer with 3 Zone Operation with Microphone<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>3 Zone volume control for Tower Speakers， Cabin Speakers and Subwoofer zones Plus Master Volume Control</li><li>Built In Talk Back Microphone with Adjustable Volume Control</li><li>Dual 4 Band Parametric Equalizers for Tower &amp; Cabin Zones</li><li>Main RCA input Plus Aux 3.5mm input Jack</li><li>Internet Warning!!! Wet Sounds， Inc. products sold on any non authorized web site or internet auction site are void of any and all manufacturer's warranty. This includes non authorized sellers on Amazon， eBay and craigslist. Please contact Wet Sounds for an authorized site and/or an authorized retailer near you.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41dgPi%2BVRqL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41xPXB7tOzL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31%2BsAtOMwdL.jpg" noproxy>