This small 12-digit desktop calculator has a sleek arched design that makes it suitable for any professional office. Other features include: dual power supplies, tilted display and a stylish dark gray finish. 12-Digit Mini Desktop Calculator. Professional construction with arched design. Top and bottom made from Canon recycled material. Mark-up (MU), Reverse (RV), Grand Total (GT) calculations. Dual power supply (battery and sunlight). Large inclined display.