JOYO JMT-9009B Backlit Metro-Tuner for Guitar Bass Violin Ukulele Description: Beat: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 Tempo: 30-250 bpm A4 Frequency: 410-450Hz Tuning: Chromatic, Guitar, Bass, Violin, Ukulele Semitones: b, bb Tuning Range: 0A(27.5Hz)-8C(4186.01Hz) Weight: 40g Dimensions: 63(L)X93(H)X24(W)mm Power: CR2032 Battery (1) Apply For: Guitar Bass Violin Ukulele Package Included: 1x JOYO JMT-9009B Tuner