The BIGMINI is Chromatic tuner that takes up minimal space on your pedalboard. It features two different tuning modes: needle mode and strobe mode. The tuning range is from A0 (27.5 Hz) to C8 (4186 Hz). Thanks to the wide range, the BIGMINI can deliver accurate detection of Low B of 5 string bass guitar. A flat tuning setting is available as ?/??/???/ ????. You can change the calibration setting from 435Hz to 445Hz. The LED display is bright enough and easy-to-read even on a dark stage. A true bypass switch provides the shortest, most direct signal path, as well as the cleanest possible sound.