TWA WR-03 Wah Rocker Guitar Filter Effect Pedal<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Range Control - allows the user to adjust the overall frequency band in which the filter is sweeping. This allows for fine-tuning of the filter sweep without adjusting your playing dynamics. </span></li><li><span class="a-list-item"> Gain Control - adjust the output level of the pedal from unity gain to a healthy boost. The original WR-3 could get lost in a dense mix-well， not anymore! </span></li><li><span class="a-list-item"> Blend Control - Our version features a continuously variable Blend control rather than a Blend switch， allowing for a much beefier bottom-end and a wider variety of tones. </span></li><li><span class="a-list-item"> Guitar/Bass Switch - an Added bonus， we built the sounds of the almost-as-legendary Bottom Wah Rocker into our pedal! Get that super-fat， low-end swamp enjoyed by Juan Alderete &amp; Justin Chancellor. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/417AZV5OaxL.jpg" noproxy>