Vertex MH-450S Standard Speaker<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Avoid direct sunlight or air from heaters and the like. </span></li><li><span class="a-list-item"> Make sure the plug is firmly inserted into the transceiver jack. </span></li><li><span class="a-list-item"> The microphone should be positioned 2cm to 5cm from the mouth. </span></li><li><span class="a-list-item"> Although this unit is drip-proof， be sure to wipe drops of water away when the unit is moistened with rain， etc. </span></li><li><span class="a-list-item"> Compatible with VX-160， VX-230， VX-350， VX-410， VX-420， VX-420A. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41vBxlSDYQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41FglvXdvLL.jpg" noproxy>