The Yamaha Arius Series provides true piano sound and feel. The graded-hammer keyboard of the Yamaha Arius YDP181 digital piano makes it a true joy to play both in practice and in performance. The 3-level AWM dynamic stereo sampling voices deliver remarka - Keyboard:Touch response: hard, medium, soft, fixed - Type: GHVoice:Number of voices: 14Number of polyphony: 128Piano voice quality: AWM dynamic stereo sampling - Number of dynamic steps: 3Effect:Reverb: 4 types - Effect: 4 types - Brilliance: yes - Damper resonance: yes - Dual: yes - Split: no - Song:Playback: number of preset songs: 14 (voice demo), 50 (piano)Recording: number of songs: 3; number of tracks: 2Metronome: yes - Pedals: number of pedals: 3 (damper with half pedal effect, sostenuto and soft)Overall control:Tempo: yes - Transpose: yes - Tuning: yes - Scale tuning: yes - Display: type: 7-segment LEDJacks and terminals:MIDI: In/Out - To host: no - Headphone: 2AUX. In (L/L+R, R): no - Out (L/L+R, R): no - Out (L, R): no - USB to device: yes - Outboard content:Song: pianosoft solo: yes - Amplifier/speaker:Output: 20W x 2Speaker: 16cm x 2Speaker/headphones control: yes - Cabinet:Key cover: sliding - Headphone hanger: yes - AC power cord included