142832 Quantity：1 Piece(s) Color：Red Material：Plastic Compatible Models：Piano， Drum etc. Application：Metronome tolerance: < 1%， Tone generator tolerance: < 0.1%， Tempo range: 30-260 bpm Features：1.9" LCD screen， Powered by 4 x AAA batteries (included) Packing List：1 x Metronome /Tone generator