This is because it has a real wood key action with wood keys, wood action parts, and other organic key action parts from a real acoustic vertical piano coupled with the piano sound being produced digitally through speakers (no strings attached:). The 40″ height of the piano means that it is a console size piano and not a real acoustic type upright which is normally considered 48″ tall. Acrlic resin (white keytops). Specialized Upright Piano Action. Tactile Response System (TRS). Number of Polyphony Max. Number of Preset Songs. Spatial Acoustic Speaker System. (40W + 40W) x 2. (6-5/16″ + 3/4″) x 2. The item “Yamaha Hybrid Piano NU1″ is in sale since Saturday, July 23, 2016. This item is in the category “Musical Instruments & Gear\Pianos, Keyboards & Organs\Pianos\Upright Pianos”. The seller is “jeanvand” and is located in San Francisco, California. This item can’t be shipped, the buyer must pick up the item.

• Number of Keys: 88
• Brand: Yamaha
• Model: NU1
• MPN: Does Not Apply
• Number of Pedals: 3