Tube size: 17"/ 43.2 cm Invar shadow mask FST  Invar shadow mask FST tube with 0.27 mm dot pitch  Easy to use on-screen menus  Power consumption under 100 W  1024 x 768 at 90 Hz  Dynamic Focus  TCO'95 approved  Designed for Microsoft Windows NT and Windows 98  Plug 'N Play   With The 17" Nokia 447Zi you can use high screen resolutions and therefore have 63% more workspace compared to a 15" display. You also make full use of all that extra space, since the Dynamic Focus feature ensures crystal clear and sharp images from corner to corner.   The Nokia 447Zi fully complies with the strict TCO'95 safety and ergonomics standard. Images are flicker free and convergence tolerances very tight. The picture tube's energy consumption is under 100 Watts. This makes the Nokia 447Zi an environmentally sound choice, and simultaneously lowers energy costs.   The on-screen menu is designed with user friendliness in mind. The three button interface gives you fast access to brightness and contrast adjustments. A wide range of adjustment parameters are also available, many of which are usually found only on larger, well equipped displays.   All the features combined, the Nokia 447Zi offers price/performance value that's hard to match.