This class-leading action offers several advanced features that, until now, were not available on pianos in this price range. Hammer Weighting is graded heavier to lighter from bass to treble, accurately simulating the hammer sizes and weights of an acoustic piano, while Authentic Counterbalance Weights greatly enhance repetition and responsiveness. Triple Sensor Key Detection tells the piano how far a key is depressed at all times, greatly improving the way repeated notes respond and simulated Let-off recreates the sensation of the repetition jack of a grand piano action. Finally, Ivory Touch Key Surfaces feel textured and offer comfortable grip under the fingers.