... 6.5 in. full-range high-fidelity Desktop, dual headset microphone, MIDI, LCD display Electronic Digital PianoSPEAKER: 6.5 in ... . full-range high-fidelityDesktop, dual headset microphone,MIDI, LCD display the signal input and output Keyboard: ... Soft Computer production: MIDI function Tone Control: Sustain, pitch, Yinfen fine-tuning, DSP digital sound effect Interface: Headphone, microphone, MIDI ...