Specification: 6 training programs: 1)Metronome with programmable beat(0-9), rhythm(7 types), tempo(30-260 bpm), and selectable drum or click sound 2)Tap tempo with programmable beat 3)Stroke meter(10-90sec) 4) 9 practical drum grooves: Disco, Pop, Rock, Funk, Samba, Afro-Cuban, etc + mutable bars for practicing drum fills 5)Count & Mute: Metronome function + programmable counting and muted measures(1-9) 6)Tempo step up & down: Metronome function + programmable floating tempo range (30-260) and bpm/ measure leap(1-9)- anti-slip and vibration-reducing foam rubber strips 8mm(5/16") thread for mounting on stands 9V battery (included) or optional 9V/1A adapter with reverse polarity الحالة جديد