ZVEX Sonar Vexter Series Tremolo Guitar Pedal<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Volume， Speed， Attack， Duty， Release， Delta and Depth controlsBypass On/Off， Tap Tempo， Clean/Machine， Tap Temp and Arrow Up/Down switches </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51bb35LyiDL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/312C5ahjjZL.jpg" noproxy>