Standard Horizon MLS-310W White external speaker with amplifier<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> White external speaker with volume control and internal amplifier </span></li><li><span class="a-list-item"> Manufacturer Part Number MLS-310W </span></li><li><span class="a-list-item"> 12VDC input， 4 Ohm， 10W with 6.5 feet of speaker cable </span></li><li><span class="a-list-item"> For use in high-noise environments </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41EsWtufvXL.jpg" noproxy>