Atlas Sound GA-30T 30W Utility Paging Horn<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Dual voltage， knob-adjustable impedance selection for 25/70.7V line connection </span></li><li><span class="a-list-item"> Multi-function， re-entrant horn loudspeakers offer efficient sound penetration </span></li><li><span class="a-list-item"> Sturdy construction for long-term indoor and outdoor paging， music， and intercom use </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41p6%2B-JV9UL.jpg" noproxy>