Two in one super dirt pedal, specially design for bass: it has a blend knob on each circuit.
First is a Maus 41 (classic RAT inspired distortion with JFET booster) tuned for bass
Then a less gainy Strahl Fuzz (big muff style fuzz with mids controls and pregain control so that it suits passive and active basses well)
The blend knob lets you dial the pure signal mixed with the effected one...
things get interesting using both effects at the same time...then you can dial some pure signal, some distortion, and some distortion through the fuzz...
Lots of tones and harmonic contents to choose from!
Works awesome with guitar too :)