Recall Favorite Settings: The pedal offers user assignable expression jack and 6 preset slots to save and recall your favorite settings Time Shadows Modes: Time Shadows has two operating modes which are indicated by the color of the Save or Recall switch. Green means Live Mode, and Red means Preset mode Simple Controls: The EarthQuaker Device Time Shadows II Subharmonic Multi-Delay Resonator Guitar Pedal features three modes of control - Time, Span and Filter. While they control the same parameters, the results in each mode are extremely different