Features:

• Compact compressor designed especially for bass guitar
•  Input sensitivity ranges from -10 dBu to +2 dBu making it a perfect fit for both passive and active basses of varying output levels
•  Maximum gain reduction of 21 dB, with enough make-up gain to return your signal to full volume at maximum sustain (compression)
•  Attack toggle switch changes the timing of the onset of compression and provides three selectable settings: Fast, Medium and Slow
•  True bypass for maximum signal path integrity when in bypass mode
•  Tough, compact die-cast package
•  9V battery included