Chevron down icon Chevron down icon BOSS TU3 Chromatic Pedal Tuner BY ROLAND PRODUCT CODE: R03-TU3 Suggested Retail Price 980 $980.00 Guitar TunerROLAND 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Spinner icon Tuning Range A0 (27.50Hz) - C8 (4186Hz) Callibration A4 = 440Hz Power Supply Lithium battery (CR2032) x 1