Hughes &amp; Kettner Tube Factor Classic All Tube BoosterOverdrive Effects Pedal True Bypass<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Easy to tweak. </span></li><li><span class="a-list-item"> Voicing knob. </span></li><li><span class="a-list-item"> Switching Functions Factor 1 2. </span></li><li><span class="a-list-item"> Real Bypass. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51Hr-iWshML.jpg" noproxy>