Gravity GCH1 Guitar Chorus Effects Pedal<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Controls: Pedal Switch， Speed Knob， Depth Knob， Level Knob </span></li><li><span class="a-list-item"> Input Impedance: 470KΩ </span></li><li><span class="a-list-item"> Max Output Level: 120mV </span></li><li><span class="a-list-item"> Output Impedance: 1 KΩ </span></li><li><span class="a-list-item"> Dimensions: 4" x 2.5" x 1.5" </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41rrMKlTgAL.jpg" noproxy>