TC Electronic Polytune 2 Pedal Tuner for Guitar & Bass. Tuning Accuracy: Strobe Mode 0.1± cent, Chromatic Mode 0.5± cent. Tuning Range: For guitar and bass. Reference Pitch: A4 = 435Hz to 445Hz. Tuning Modes: Strobe and Chromatic (used for Polyphonic tuning). For a detailed guide to Guitar Tuners see https://www.gearank.com/guides/guitar-tuners
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