Chevron down icon Chevron down icon BOSS TU12EX Chromatic Tuner BY ROLAND PRODUCT CODE: R03-TU12EX Suggested Retail Price 760 $760.00 Guitar TunerROLAND 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Purchase In-Store>> Spinner icon Tuning Range A0 (27.50Hz) - C8 (4186Hz) Callibration A4 = 440Hz Power Supply Lithium battery (CR2032) x 1