8 pack m50 black digital lcd beat tempo metronome clip + battery

new and m50 is a professional mini metronome multi-functional, easy to use tap function enables you to test your tempo or tempo of a track stereo earphone jack is available * clip and lanyard hole design, easy to carry and easy to fix * tempo: 30 to 280bpm * beat value: 0,1,2,3,4,5,6,7,8,9 * accuracy:±0.001 * size: 2.20" x 1.26" x 0.51" * color: black * weight:35g * package included: 1 x m50 black digital lcd beat tempo metronome clip 1 x cr2032 battery 1 x user manual