The pedal functions in two modes: Clean and Clip mode. The Clean mode has a very wide compression range, ideal for limiting humbuckers that strain the signal output. This mode also allows you to dial in a very soft and clean compression for single coil pickups. The Clip mode offers a much more aggressive compression. It is perfect for single coil guitars that would need a boost in output. The Blend circuit allows you to mix the compressed signal with the uncompressed one to better manage your overall output. A great little pedal for musicians looking to optimise their tonal possibilities.