Dual-envelope filter pedal uniquely designed for bass instruments; Two identical filters sweeping in opposite directions for unique tones; Blend control adjusts the mix between two dynamic envelope filters; Threshold control sets the sensitivity based on your playing dynamics; Velocity controls dictate the speed of each filter's movement; Compact and lightweight design, ideal for transport and setup; Provides both mono and stereo output options, enhancing versatile usage; Operates with a universal 9-volt power supply (not included); True bypass ensures a clean signal path when the pedal is not active; Achieves classic '70s funk tones and expressive, vocal-like effects