Fishman PRO-MAN-INF Matrix Infinity Pickup &amp; Preamp System Narrow Format w/Bonus Deluxe RIS Picks (x3) 605609106537<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Completely redesigned active， endpin-mounted preamp Soundhole-mounted rotary controls for Volume and Tone </span></li><li><span class="a-list-item"> Unique Tone control cuts mids while boosting treble and bass Integrated LED low battery indicator </span></li><li><span class="a-list-item"> Features the world’s best-selling undersaddle pickup， the Acoustic Matrix Switchable voicing to accommodate all guitar body sizes and performance situations </span></li><li><span class="a-list-item"> Solderless connections Professional installation is recommended </span></li><li><span class="a-list-item"> Requires 9-volt battery (not included) Available in two saddle slot widths: Wide 1/8? (3.2 mm) format or narrow 3/32? (2.3 mm) format </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41AYfjFewtL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41tiEQJ8GtL.jpg" noproxy>