Medeli M5 61-note keyboard with touch repsonse With touch response keys, 300 voices, 200 styles and 100 built-in songs. Keyboard: 61 Keys with Touch Response Voice: 300 Voices Style: 100 Styles Song: 100 Songs Demo: 10 Demo Songs Polyphony: 32-Note (max) Accompaniment Control: Start/Stop, Sync, Intro/Ending, Fill, A.B.C. Overall Control: One Touch Setting, Dual, Lower, Sustain, Other Playback Connectors: DC 9V, Headphones, Sustain, USB Port (MIDI In/MIDI Out) Learning: Lesson Function, Chord Dictionary Function Dimensions: 940(W) x 354(D) x 135(H) mm