Purchase includes Gear Guardian extended warranty that covers manufacturer’s defects for one full year after manufacturer’s warranty has expired. Defective products will be repaired, replaced, or substituted with a comparable product without charge. Additional details can be found on warranty document included with purchase. Drawing on over a hundred years of experience and craftsmanship in making world class acoustic pianos, Yamaha’s YDPS31 Arius digital piano offers an exceptionally natural key touch that virtually replicates that of an actual grand piano. It features a Graded Hammer Standard keyboard with realistic matte black finish key tops, and a damper pedal that includes an authentic Half Damper effect, giving you nuanced expressive control over the sustained sound–far more realistic than a simple on/off footswitch.