Barcus Berry 3125M Cello Piezo Transducer<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Transducer only. </span></li><li><span class="a-list-item"> No preamp. </span></li><li><span class="a-list-item"> No preamp. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41Zx2W5BTqL.jpg" noproxy>