... keys 2)128-note polyphony,40 demo songs 3)3-digit LED,USB MIDI 4)Steel or wooden stand select TG ... intro, Ending, Fill in, Start-Stop, Rhythm, Easy ChordDisplay 3-digit LEDPedal SustainEffect Reverb ( Room, Hall1, Hall2, Stage ) Modulation ( Chorus, Phaser ... be selected, with purchased separatelyMore details:keyboardControl panelInterfaceMusic borad Digital Piano DP1000