88-key Arranger Piano with GHS Weighted Action, Pure CF Sound Engine with Piano Room, 554 Voices, Score Display, 6-track Song Recorder, Mic Input, USB-to-host, USB-to-device, Footswitch, Music Rest, and Matching StandFeatures:- Everything you need in one box- Score Display scrolls MIDI song notation on the DGX-660's LCD screen- Wi-Fi streams audio/MIDI to/from your iOS device running Yamaha's compatible apps (requires optional adapter, not included)- You Are the Artist software converts popular Hal Leonard books to XG song- Onboard LCD screen- Feature-packed 88-key arranger piano with matching stand- GHS Weighted Action: Heavier in the bass, lighter in the treble range- Yamaha's Pure CF Sound Engine, 192-note polyphony- 554 voices, 205 styles- Precisely sampled 9' Yamaha CFIIIS concert grand- Piano Room feature gives you a selection of fine pianos and ambiences- Mic input lets you sing along with your playing and record the performance- USB audio recorder-player: plug a thumb drive into the USB-to-device port and record- USB-to-host for connection to your favorite computer music software- 6-track song recorderSpecifications:- Number of Keys: 88- Type: Graded Hammer Standard (GHS) Keyboard- Touch Response: Soft, Medium, Hard, Fixed- Other Controllers: Pitch Bend- Display: Full Dot LCD- Piano Sound: Pure CF Sound Engine- Number of Polyphony: (Max.) 128- Number of Voices: 147 + 15 Drum/SFX Kits + 381 XGlite- Featured Voices: 1 Natural Voice, 9 Live Voices, 8 Sweet Voices, 7 Cool- Voices Effects: Reverb, Chorus, DSP, Master EQ- Functions: Dual/Layers, Split, Panel Sustain- Panel Sustain: Yes (Function Menu)- Number of Preset Styles: 195- Fingering: Multi Finger, Full Keyboard, AI Fingered- Style Control: Intro, Main x 2, Fill-in, Ending- Number of Preset Songs: 100- Number of Songs: 5- Number of Tracks: 6 (5 Melody + 1 Chord)- Data Capacity: Approx. 30,000 notes for 1 user songs (when only melody tracks are recorded)- Yamaha Education Suite (Y.E.S.): Waiting, Your tempo, Minus one, Repeat & Learn, Chord Dictionary- Demonstration: Yes- Playback: .wav- Recording: .wav- Tempo Range: 5 - 280- Transpose: -12 to 0, 0 to +12- Tuning: Yes- Piano Button: Portable Grand Button- Internal Memory: Approx. 1.7MB- External Drives: USB Flash Memory- DC in: DC in 12V- Headphones: x1- Sustain Pedal: x1- Pedal Unit: x1- AUX IN: Yes- USB to Device: Yes- USB to Host: Yes- Power Supply: Adaptor (PA-150 or the equivalent)Dimensions:- Width: 139.7cm- Height: 14.6cm- Depth: 44,5cm- Weight: 22.5Kg'sWhat's in the box- 1 x DGX-660B Piano- 1 x Wooden Stand- 1 x AC Power Adaptor- 1 x User Manual