... 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 0.5%weight: 930gColor: White/Green/Orange/BlackPower: 3*AAA Battery or 9V AC adaptor Feature: 1 ... 3.Metronome and practice drum 2 in 1,convenient to use and carry 4.full beat and rhythm, ...