Stut, stut, stut, stut, .... STUTTERFLY! AMT Electronics SY-1 has all the features of a delay pedal that modern guitarists are looking for, all in a small compact enclosure that will fit easily on any pedalboard. Most delays include the standard time, feedback, and level controls. AMT recognized the need for a few extra options that would greatly improve the versitility and flexibility of the pedal. The Stutterfly delay also includes an added TONE control, MIX feature, and MOD adjustment; usually only found on more expensive/larger sized units. Sounds great with both clean AND overdriven distorted guitar signals.