CRESCENDO AUTO SWELL - Responsive Crescendo Pedal with 2-Knob Interface for Haunting Guitar Line Manipulation.

Features:

Lets you create rolling and powerful volume swells

Instantly accessible 2-knob interface featuring sensitivity and attack

Controls attack time to create almost violin-like guitar lines

True bypass for ultimate signal integrity

Built-like-a-tank metal chassis

Runs on 9 V battery or the PSU-SB DC power supply (not included)

3-Year Warranty Program*

Designed and engineered in Denmark