This is a PSR-275 61-key touch response keyboard features over 480 voices & & includes the music rest and A/C adapter.Features: o A backlit LCD capable of displaying musical notes, chord info and various functionso A touch sensitive key-board that responds like a pianoo General MIDI (GM) compatibility for playing songso XGlite technology that provides a huge choice of voices & & even greater MIDI song file compatibilityo A PC Button for easy computer system connectivityo 100 Built-in songs for simple learningo Bass Boost Systemo Stereo (Not simply 2 Speakers) - All Yamaha Portable Keyboards are real stereo.o Digital Signal Processing (DSP) - Enhances sound quality with sophisticated digital effects like Harmony, Reverb & & Chorus.o Advanced Wave Memory (AWM) - Yamaha Advanced Wave Memory technology provides surprisingly practical sound.Expressive Touch like a piano - With Yamaha's "Touch Response" the key-board responds like an acoustic piano.Portable Grand - features a stereo-sampled piano voice and vibrant filtering; technology formerly reserved for a lot more costly, expert keyboards.General Midi and XGlite voices - Able to connect your key-board to your computer system, the PSR275 is GM (General MIDI System Level 1) compatible so the key-board will properly reproduce any GM music files and has a big selection of XGlite voices, offering even higher compatibility with both 3rd party and Yamaha XG software.Computer Connectivity - Yamaha key-boards have an unique MIDI (Musical Instrument Digital Interface) port on the back that let you link your keyboard to a computer system (needs a MIDI Interface like the Yamaha UX16 and music software application). Yamaha Education Suite: Learning to play chords and tunes - The PSR275 features 100 integrated tunes with Songbook. The Yamaha Education Suite II(TM), a remarkable set of music training functions, makes learning music unbelievably easy. 7 types of lessons are readily available along with a hassle-free chord dictionary.Keyboard Styles and the One Touch Setting - The PSR275 includes 100 integrated designs, like having a built-in band.Sound Quality32-note Polyphony - The PSR275 has 32 notes of polyphony, which suffices for the most demanding needs.Dimensions: o 37"W x 14.5"D x 5 "HIf you are interested or have anymore questions, CALL me. Willy '