Wampler Ace Thirty Overdrive Pedal<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Hand made in the U.S.A. </span></li><li><span class="a-list-item"> Completely true bypass </span></li><li><span class="a-list-item"> Controls: Volume， Gain， Bass， Treble， Top Cut and Boost Level </span></li><li><span class="a-list-item"> Class A pre-gain boost (treble) to give an authentic overdriven tone </span></li><li><span class="a-list-item"> Boost can be used when main pedal is off to drive amp/other pedals </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51GF1FuZ%2B4L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51QkZcbh3GL.jpg" noproxy>