The 4200L offers a unique interactive display designed to enhance the touch experience. The 42-inch interactive, large-format display features a choice of industry-leading touch technologies that optimizes the touch experience for a particular usage. For a seamless, zero bezel design, the innovative Acoustic Pulse Recognition (APR) touch technology delivers an elegant appearance and a responsive touch experience. Zero-bezel APR technology from Tyco Electronics recognizes touch on virtually the entire display surface, offering a full-screen interface for navigation regardless of how the display is touched-finger, prosthetic, stylus, card or pen. For a sensitive, accurate touch response, IntelliTouch surface wave product technology utilizes pure-glass construction to deliver excellent imagery with high light transmissions, not affected by changes in ambient light, and supports finger, gloved hand and soft stylus activation.