61-key keyboard that features 375 natural sound voices.Total of 375 high-quality instrument voices and 100 accompaniment stylesPortable Grand button lets you instantly call up Yamaha's world-famous grand piano soundYamaha Education Suite (Y.E.S.) feature102 built-in songs for easy learningReverb effect with 9 different reverb typesThe PSR-E223 features 375 natural sounding voices, including Stereo Grand Piano, 361 XGlite voices, 12 drum kits and a sound effect kit. The PSR-E223 also has 100 accompaniment styles and 102 built-in songs. Use the Portable Grand button to instantly call up an authentic stereo grand piano sound. The instrument also has a rich Reverb effect that adds concert-hall ambience to any performance. The Yamaha Education Suite feature makes learning and practicing music more fun than ever before.Features:Keyboard/Polyphony: 61 regular-sized keys and 32-note polyphony.Voices & Styles: Total of 375 high-quality instrument voices (Stereo Grand Piano, 361 XGlite voices, 12 Drum Kits and Sound Effect Kit) and 100 accompaniment styles.Sound Effect Kit: Try out each key and enjoy the sound of a dog barking, running water, a creaking door and many other unique effects.Yamaha Education Suite (Y.E.S.): Yamaha Education Suite (Y.E.S.) is an advanced set of helpful learning tools built into the instrument, letting you teach yourself how to play and perform. Y.E.S. helps you master a song with easy lesson steps. Each lesson can be done in isolation with either your left hand or right hand, or both.Portable Grand Button: Playing piano is fast and easy with Yamaha's Portable Grand function. One dedicated button brings up a great sounding piano, stunningly rich and authentic in its sound and exceptionally responsive to your playing touch, as well as setting up the keyboard to play as a piano.Reverb: Different reverb types let you add rich, concert-hall ambience to your performance.Specs:Colour: BlackDimensions: Width 945mm (37-3/16'), Height 118mm (4-5/8'), Depth 348mm (13-11/16')Weight: 4.5kg (9lbs., 11oz.)Tone Generating Technology: AWM Stereo SamplingNumber of Polyphony (Max.): 32Preset Number of Voices: Stereo Grand Piano + 361 XGlite + 13 Drum/SFX/SE KitsFeatured Voices: Sound Effect KitCompatibility: GM Yes, XGlite YesReverb: 9 typesFunctions: Panel SustainPreset Accompaniment Styles: 100Fingering: MultiStyle Control: INTRO, MAIN x 2, FILL-IN, ENDINGOther Features: One Touch SettingNumber of Preset Songs: 102Metronome: YesTempo Range: 32 - 280Transpose -12 to 0, 0 to +12Tuning: YesConnectivity: DC IN 12V, Headphones x 1, MIDI In/Out, AUX Pedal 1 Footswitch (optional)Amplifiers: 2.5W + 2.5WSpeakers: 12cm x 2Power Supply: Power Supply Adaptor (Included), or batteries (Six 'AA' size, LR6 or equivalent batteries)Power Consumption: 12WIncluded Accessory: Music Rest, Power Adaptor