Mad Professor MAD-BBBOD Bass Distortion Effects Pedal<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> The tone of vintage tube bass amplifier </span></li><li><span class="a-list-item"> Very dynamic tone， play harder = more distortion </span></li><li><span class="a-list-item"> Adjust what frequency you want to distort with Nature knob </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51hQO1IJbxL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51C6HoEInwL.jpg" noproxy>