This little thing emulates the classic electric piano sounds of the 70's and '80's . Rhodes, Wurlitzer, Clavia, Yamaha Digital piano and more. Another cool feature is the Easter egg Yamaha placed in the software allowing you to get their concert piano algorithm as well . Octave switch allows full octave 88 key range on the fly. Super portable and optional battery power . Check out the reviews online its amazing. Retails for $400 plus taxes so this is nearly half the price. Cash only no trades please