D'Addario Chromatic Pedal Tuner PlusCHROMATIC PEDAL TUNER PLUS Signal Buffer, Set Timer The DAddario Pedal Tuner Plus boasts the speed and accuracy of our original Pedal Tuner, plus two new features. First, it has a high quality signal buffer, to maintain your sound across long cable runs and prevent signal loss through your effects chain. Second, it includes a programmable countdown timer to keep track of your set or session time. All of that combines to make a standout multipurpose