Optional 3-pedal unit for electric piano YPG-635 that provides the same level of expressive control as that of actual acoustic grand pianos, including Half Damper effect, with more realistic control over the sustained sound. In addition to Damper, Soft and Sostenuto control, the left pedal adds special control to the Classical Guitar and Sweet Muted Trumpet voices. Unit is a great accessory for piano players and music students, and it also works with Yamaha DGX 640, 650, DGX 660 and DGX630B. Dimensions: 304.8 x 127 x 177.8 mm. Weight: 1.36 kg.