Electro-Harmonix Worm XO Analog Wah Phaser Vibrato Tremolo<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Mode selectable analog modulation effects: wah， phaser， vibrato， tremolo </span></li><li><span class="a-list-item"> Manual mode removes the modulation so the effects can be swept by hand </span></li><li><span class="a-list-item"> Tough and compact die-cast chassis </span></li><li><span class="a-list-item"> True bypass </span></li><li><span class="a-list-item"> 24VDC-100 power supply included </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51XV5E6JkML.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/113EriX3RqS.png" noproxy>