The RD-800 was designed for fast, effortless operation while playing on stage. Live Sets allow you to store prepared setups including tone layers, keyboard split points, effects, and much more for quick recall via dedicated buttons while performing. For t - Keyboard Number of keys: 88 Key - Action: Graded Hammer action - Key size: Full - Aftertouch / Velocity: Adjustable - Key Type: Piano-style - Sounds Number of voices: 1113Polyphony (max): 128-note - Layers: Yes - Split: Yes - Connectivity AUX input: No - MIDI Connectivity: MIDI In/Out/Thru - Line output: Yes - Line input: No - USB Connectivity: Yes - Headphone jacks: 1Pedal inputs: 4Storage type: Internal & USB Expandability available: No - Onboard Features - Recording/Playback MIDI sequencer - Accompaniment styles: 200Preset songs: 60Display: Backlight LCDEffects: Yes Built-in speakers: No - Pitch bend/Modulation: Both - Other controls: 4 sliders, 7 knobs - Effects Reverb: Yes - Chorus: Yes - Equalizer: Yes - Arpeggio: No - Other: Yes - Other Width: 55.125"Height: 5.625"Depth: 14.5"Weight: 47.9 lbs. - Power: IEC cord - Batteries: Not applicabl