MXR M87 Bass Compressor

MXR M87 Bass Compressor, Effect Pedal, Compressor pedal for electric bass, CHT "Constant headroom technology" for clean and clear sound quality, Knobs for output, input, release, attack and ratio, LED chain with 10 LED for "gain reduction" display, Status LED, True bypass, Sturdy metal housing, Operated with 9 V battery or Dunlop ECB-003 AC adapter (sold separately, not included here)