Boss NS-2 Noise SuppressorBoss NS 2 (excellent condition) Features Noise suppression pedal designed exclusively for guitars and basses Advanced noise detection technology preserves the instruments natural sound and response Send return loop optimizes noise reduction when using gain based effects Convenient Mute mode for tuning, changing instruments, and performance breaks DC output jack for distributing power to other pedals (requires optional PSA series adaptor and PCS 20A