MXR M133 Micro Amp<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Adds a preset amount of gain with a single control </span></li><li><span class="a-list-item"> Boost your signal for lead work </span></li><li><span class="a-list-item"> Perfect for switching between guitars with unmatched output </span></li><li><span class="a-list-item"> Power: Dunlop ECB003 AC Adapter or Single 9 volt battery </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41YpuFyo2iL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41h3eytqnML.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41zSIJ9%2BaWL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41L0toe5D0L.jpg" noproxy>