... product,novel deisgn 3.metronome and practice drum,2 in 1 4.long service life,has head phones Eno ... green color unique metronome and practice drum 2 in 1 digital electronic drum pad Specification:Tempo range: 30 ... ~280bpmBeat: 0,1,2,3,4,5,6,7,8,9Tolerance: Less than ... of real drum 3.Metronome and practice drum 2 in 1,convenient to use and carry 4.full beat ...