1.Executive standard GB/T12105-1998,GB8898-2001,GB13837-2003,GB17625.1-2003 2.Keyboard 61-key standard piano keyboard 3.Display LED digital display 4.Tone 100 voices 5.Rhythm 100 styles 6.Demo song 8 stereo demo song 7.Directly selected voicerhythm 4 directly selected voices/4 directly selected styles 8.Effect Control sustain ,vibrato,Transpose,keyboard split,metronome 9.Record Record,play ,real-time record function 10.Program styles program function 11.Drum keyboard drums 12.Accompaniment control start /stop ,sync,fill-in,tempo 13.Chord Control single chord,finger chord,chord clear 14.Intelligent Guide demo songs ,guide 1,guide 2 15.Other control power switch,volume control,accompany vol 16.External Port power jack,headphone jack,left and right sound track jack 17.diapason: C2~C7 18.accuracy in musical tuning: