Tri-Sensor, Scaled Hammer-Action Keyboard * 4-Layer Stereo Piano * Hammer Response and Damper Resonance Simulator * Ebony and Ivory Feel Keys * Bundle includes a Casio Privia PX-150 88-Key Digital Piano, a Casio Privia Pac -- i.e., Casio CS-67 furniture-style stand and Casio SP-33 three-pedal system (a $149.99 value) -- a Hal Leonard instructional book (a $15 value), and an Austin Bazaar polishing cloth (a $5 value)