The Eden Astroflange flanger pedal has been designed specifically for bass. It produces a strong defined flanger effect and allows you to dial in (or out) the frequencies being affected. Velocity and Altitude controls adjust the overall parameters of the flanging effect, While the Low Cut control allows you to fully control where in the frequency band the flanger takes effect. Create longer low swells, brighter fast shimmers and subtle rolling waves with the Eden Astroflange. SPecs Power Supply: 15v (included) Dimensions: H: 2.1 in / 5.5 cm W: 4.8 in / 12.2 cm D: 3.5 in / 9 cm Weight: 1 lb / 0.47 kg