The D'Addario Pedal Guitar Tuner Plus is a high-performance guitar tuner pedal that builds on the speed and accuracy of our original Pedal Tuner, now with two powerful upgrades. It features a high-quality signal buffer to preserve your tone across long cable runs and prevent signal loss through your effects chain. Plus, a programmable countdown timer helps you keep track of your set or session time. This versatile guitar tuner pedal is a must-have pedalboard tool—keeping you in tune and on time, every time.