Randall RF4 4 button MIDI Footswitch<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Can be powered via 7-pin cables by amps that provide MIDI power -or- 9VAC inlet provided </span></li><li><span class="a-list-item"> 3 channels </span></li><li><span class="a-list-item"> 4 button universal midi controller </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31gINXXhoHL.jpg" noproxy>