Xotic Effects SP Compressor Effect Pedal<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> . </span></li><li><span class="a-list-item"> . </span></li><li><span class="a-list-item"> True Bypass </span></li><li><span class="a-list-item"> Powered by a standard 9 volt DC power supply or battery (not included) </span></li><li><span class="a-list-item"> . </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41z0dPKk-GL.jpg" noproxy>