The Lenovo A540 All-in-One PC uniquely combines a super-slim frameless touch screen with a widely adjustable screen angle (from -5° to 90°) that allows comfortable use in any position. Widely Adjustable Touch Screen Use the A540 for perfect touch-screen comfort with a widely adjustable screen (-5° to 90° flat). Over 20 game & education apps pre-installed for out-of-box multi-touch entertainment Frameless 10-point multi-touch display, with PCT technology Premium Design: Aluminium Shell, 4 mm Thick A540 leads the industry in display thinness A540 is constructed from 4 pieces of aluminium for a cool, sharp design Great Entertainment: IPS display, JBL speakers 23.8" IPS Full HD (1920x 1080) display is perfect for enjoying & editing photos & videos 178-degree wide viewing angle technology provides the perfect picture from any angle With speakers of the highest standard, JBL brings you a true sound experience.