Digital reverb pedal is an expanded version of the Blue Sky. Up to twelve different types of Reverb that include the classic Room, Hall, Plate, Spring, Swell, and your more personal Reverbs such as Bloom, Cloud, Chorale, Shimmer, Magneto, Nonlinear and Reflections. In addition, up to 300 presets can be stored with their corresponding names. It has an internal SHARC ADSP-21369 333 Mhz processor and the analog signal from the guitar remains unaltered, avoiding attenuation when mixing with the processed sound is produced. Through an expression pedal we can also control the parameter we choose.