B-Stock, Carl Martin BassDrive, tube-based overdrive pedal for bass, add a bit of crunch or fine tune your tone with the three-band EQ, the warm overdrive tones come from a 12AX7 inside the pedal, control knob controls include gain, bass, middle, treble and level, BassDrive features a 115-240v switchable built-in main power supply., B-Stock with full warranty, may have slight traces of use