The BUXOM BOOST is a boost pedal that maximizes the appeal of your tone. By turning the BOOST knob, you can increase the volume or create a thick, harmonic overdrive tone. The EQ bypass switch allows you to fully utilize the pedal's clarity, adding crispness and shine without changing the basic sound. The BUXOM BOOST is a pedal with the clarity and power of a BUXOM BETTY. ・Plenty of headroom for getting above a mix or driving the front end of an amp ・EQ Bypass switch removes the 3-band EQ from the signal for a truly transparent tone ・Accepts 9V or 18V power for higher-headroom performance ・Active 3-band EQ with boost bass and mid controls and boost/cut treble control ・Tight control tames your boosted amp's low end ・High-quality circuit keeps it quiet enough for use with acoustic-electric instruments ・Built in USA Weight: 1 lbs. Control knobs: Boost, Tight, Treble, Mid, Bass Powered by 9-18VDC (power adapter only) FOOTSWITCH This is a switch that turns the pedal on/off (true bypass). BASS Adjusts the bass range. MID (Mid) Adjusts the mid-range. TREBLE Adjusts the high frequency range. TIGHT Adjusts the low frequency range. Turning it to the right makes the sound tighter. BOOST Adjusts the amount of boost. EQ BYPASS SWITCH This is the EQ bypass on/off switch. IN (in) Input terminal. OUT (Out) Output terminal Power supply: DC 9V-18V power adapter only (center negative) Size: 7.1(W) x 12.1(D) x 5.8(H)cm *Including knob height. Weight: 292g Accessories: warranty card, English manual