Boss CS-3 Compressor Guitar Effect Pedal. Awesome compressor pedal from Boss. Used but great condition and works great. Has glue debris and hook & loop faster on the base for pedal board setup. Tested with DC power and works great, have not tested battery power but looks very clean. Please review all photos for overall condition. From GC Website: The BOSS CS-3 Compression Sustainer pedal provides enhanced sustain, balanced string response and punchy tone at any volume. Designed for guitarists and bassists, from beginners to pros, this innovative pedal compresses louder signals while boosting softer ones, allowing for a consistent, full sound across all volume levels. The CS-3 delivers smooth sustain and precise control over dynamics to help you sound your best on stage or in the studio.