JOYO JMT-9006B Backlit Metro-Tuner for Guitar, Bass and Violin,

Beat: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9Tempo: 30-250 bpmA4 Frequency: 410-450HzTuning: Chromatic, Guitar, Bass, ViolinSemitones: b, bbTuning Range: 0A(27.5Hz)-8C(4186.01Hz)Weight: 50gDimensions: 60(L)X78(H)X30(W)mmPower: CR2032 Battery (1)