Description**New old stock, blemish on body knob**BodyRez is the new must-have tool for every acoustic player out there. Designed to restore the natural acoustic resonance of your instrument when using under-saddle pickups, BodyRez gives you a more natural sound simply with the turn of a single knob. Getting great acoustic tone couldn’t possibly be easier, with harmonic bliss now just a stomp away.• Studio-Quality Acoustic Guitar Tone• Built-In Feedback Suppression• Restores Natural Playing Feel• Ultra-Compact Design• True Bypass• 9v Power Supply included