Cost-sell-margin keys (enter two variables and the third appears). Tax +/- , tax rate keys for automatic tax computation. Super large, fully punctuated display, full size keyboard with PC touch, backspace key, change sign key, grand total key, automatic constants. Automatic power down. Manufacturer?s 2 year warranty. Black. Features: solar, battery, tilt display, 4-key memory, square root, % key. 7-1/4"w x 6-3/8"d x 1-1/2"h. M11200-4 M112004 VCT1200-4 VCT-1200-4 VCT12004 VCT-12004 014751120047 1475112004