The Swell Echo is simple no nonsense analog voiced dynamic digital echo pedal with an expressive foot-controllable Swell feature which features a unique Swell control that allows you to tailor how quickly the Swell happens after the momentary foot-switch is pressed which can provide quickly overwhelming swells, haunting sustained repeats, and everything in between. Handmade in Wisconsin! Clear Acrylic Faceplate • MFSKU Swell Echo