88-key GH3X (Graded Hammer 3 with escapement) keyboard, 4.3 inch (480 x 272 dots) TFT colour LCD display, Yamaha CFX & Bosendorfer Imperial concert grand piano sounds, Virtual Resonance Modelling (VRM), 256-note polyphony, 777 Voices + 29 Drum/SFX Kits +480 XG Voices, 310 Styles (253 Pro Styles, 21 Session Styles, 36 Pianist Styles), Piano Room with Session Mode, Microphone input, Music Finder (1,200 records), Style Recommender, USB Audio Recorder (Playback: WAV /Recording: WAV) USB TO DEVICE, 25W x 2 amp, 16 cm x 2 speaker system, Intelligent Acoustic Control (IAC), Acoustic Optimiser, connect an iPhone, iPad or iPod touch with an optional i-UX1 MIDI interface, compatible with Chord Tracker app.