Buffer pedal with an additional clean boost cirsuit. he True Tone buffer circuit maintains the level and tone of the signal, allowing the use of longer cable runs without signal loss. The boost is foot-switchable with a knob that allows you to boost your signal by 20 dB. FeaturesClean boost with 20 dB of adjustment Built-in True Tone buffer circuit to maintain tone and signal integrity Dual LED indicators show when power is on and when boost is engaged Power from 9V battery or adapter (both sold separately) Cold-rolled steel housing with quick clip battery door.