Specification: Tuning: Chromatic, Guitar, Bass, Violin, Ukulele Tuning Range: A0(27.5Hz)-C8(4186Hz) Precision: +/-1 cent A4 Frequency: 440 Hz TIPS: 1, If the tuner dosn't work, please take out the battery and re-insert. 2, When the screen become dark or tuning becomes slowly, replace with a new battery 3, Recycle the used battery 4, Battery size CR2032 (NOT INCLUDED)
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