The Yamaha Portable Grand YPG-635 is an affordable 88-key weighted graded hammer action Portable Keyboard that boasts an authentic grand piano like touch — heavy in the low end, feathery light in the high, and amazingly responsive all over. The YPG-635 has an 88-key weighted graded hammer action keyboard with authentic grand piano-like touch — heavier in the low end, lighter in the high, and amazingly responsive! The cabinet has wood accents and an attractive matching stand that puts you and your keyboard at the correct recommended height. Also included is the adapter and sustain pedal. Rounding out the piano focus is a high resolution stereo piano sample. Want more? Add the optional LP-7 pedal unit to upgrade to three pedals and sustain half-pedaling, just like an acoustic. And to make sure you never run out of notes, the YPG-635 features 64 notes of polyphony.