The Wurlitzer piano is usually a 64-note instrument whose keyboard range is from A an octave above the lowest note of a standard 88-note piano to the C an octave below the top note of an 88-note piano. Tone production in all models comprises a single steel reed for each key, activated by a miniature version of a conventional grand piano action and forming part of an electrostatic pickup system using a DC voltage of 170v. A mechanical sustain pedal similar to that of a conventional piano is fitted.