Wittner Metronome MT- 50

Wittner Metronome MT- 50, Quartz Metronome, Tempo: 40 - 208 beats / minute, Beat Indication: Click Sound and/or Light, Reference tone: A-440Hz, IC accuracy +/- 0.05%, Mini earphone jack mono complete with earphone, Battery 1 x 9 Volt (not included), Dimensions: 64 x 96 x 33 mm, Black plastic housing ...