D'Addario Chromatic Pedal Tuner +

FAST & ACCURATE TUNING - 32 bit processor for fast response and accurate tuning. Full color display with calibration range of 415-475 Hz 
SIGNAL BUFFER - High-quality signal buffer, to maintain your sound across long cable runs and prevent signal loss through your effects chain. 
COUNTDOWN TIMER - Includes a programmable countdown timer to keep track of your set or session time. 
POWER REQUIREMENT - 9V Battery or 9VDC (300mA) Power Supply 
D'ADDARIO ACCESSORIES - For over 20 years, D'Addario Accessories (formerly Planet Waves) has been leading the industry in innovative and problem-solving products that serve musicians worldwide. D'Addario Accessories are proudly made in a state-of-the-art manufacturing facility to the most stringent quality controls in the industry.