Welcome, You are looking at a great piece. This is the Way Huge Aqua-Puss Analog Delay Pedal. The delay time adjustment is huge on this pedal from a tiny 20ms to wide open 300ms. Feedback controls the delay duration and intensity of the delay effect. You can even crank this up and towards the top, the pedal will start self-oscillating for some wicked cool sounds. Blend controls the amount of guitar signal and delay signal coming out of the pedal. The components are all high quality and the build quality is excellent. This is easily one of the coolest, simplest, and smoothest sounding analog delay pedals out there today! This Don't pass this by!