Standard function electronic calculator with large 12-digit LCD display, handheld desktop calculator for everyday and basic office use Product Great looking - 12-digit display and large numbers for easy reading. Large, sensitive keys for office, primary school, market or home useSolar powered calculator - Solar powered (works in bright light only) and battery powered (1 AA battery included). If the solar bar is blocked, the numbers on the display will disappear. Put the batteries in the calculator compartment before use Basic calculator - add, subtract, multiply, divide, backspace, % and MU. automatically switches off when you are not using it for about 10 minutes Calculator large display - ABS material, size 5.7 x 4.7 x 1.8 inches, weight 4 oz (1 piece). Doesn't take up desk space, but it is large enough to be comfortable to use.