Check the listing for details. Boss CS-3 Compression Sustainer Pedal. Condition: New. Listed at 109.99 USD. Boss CS-3 Compression Sustainer Pedal The Boss CS-3 provides excellent compression and sustain that will bring out the rich, uncluttered harmonic content of your instrument. With a low noise floor, you can adjust the controls of the CS-3 without having to worry about unwanted crackle being added to your signal. Four knobs - Level, Tone, Attack, and Sustain - allow the user to tweak every nook and cranny of this pedal's sound, whether you're after quality compression or rich, resonant sustain. Features: -Compact compression/sustainer pedal with high-quality circuitry -Compresses loud signals and boosts softer signals for a smooth overall sound -Onboard Level, Tone, Attack and Sustain controls for precise tonal shaping -Low-noise design for super-quiet operation -BOSS five-year warranty