The ModTone MT-FF Funk Filter is a true bypass boutique style pedal that recreates vintage envelope or auto-wah type effects. High pass, Mid Pass and Low Pass settings can be used in conjunction with the F-Factor control and Drive settings to deliver a wide range of exciting tones that work great on clean or distorted signals. The Funk Filter’s reaction can also be changed by simply backing off your guitar’s volume knob to find the “sweet spot” and can also change  depending if bridge or neck pickups are selected.