The Boss BF-3 Flanger guitar effects pedal builds on the legacy of the BF-2 infusing it with new elements and a heightened sound perfect for any setup. Perfect for bassists and guitarists this pedal features individual inputs for each instrument therefore ensuring that each instrument is optimised. With four knobs for intricate control of the pedals sound you can create luscious and intricate flanging sounds. A tap tempo is also a nice addition as it allows you to time your effect to the exact rhythm of your tone.