This is a BOSS compressor pedal. It's almost new, with no scratches. I'm selling it to organize my equipment. Everything that came with it when I bought it, such as the original box and instruction manual, is included. Here are the details of the product: ----------------------------------------------- This effect pedal compresses excessive input signals and amplifies small inputs, allowing you to achieve a sustain effect without distorting the sound. It's effective for crisp cutting playing and mellow guitar solos. It features thorough low-noise design and a tone knob to eliminate muffled sound. 《Specifications》 ■ Guitar effect pedal ■ Compression Sustainer ■ Power supply / 006P (1 piece), AC adapter (sold separately: PSA-100) ■ Current consumption / 10mA (DC9V) ■ Terminals / Input, Output, AC adapter ■ Dimensions/Weight / 70(W) x 55(H) x 125(D)mm, 400g