... ,tap counting and metronome 3 in 1 unique practice drumSpecification:Tempo range: 30~280bpmBeat: 0,1,2,3,4,5,6,7,8,9Tolerance: Less than 0.5%weight ... real drum 3.Metronome and practice drum 2 in 1,convenient to use and carry 4.full beat and rhythm,ringing timbre 5.headphones can be used ...