Canon Electronic MP20DH III12 Digit 2-Color High Speed Printout Calculator Large Durable, High Speed 2-Color Printing (4.3 Lines/Sec.); Easy to Read 2-Color Illuminated Display Adjustable Brightness Dispay (Darken or lighten) Line Printing Function - Separate The Calculation For Easy Viewing Efficient Profit Margin Keys, Cost / Sell / Margin For Quick & Accurate Results Professional Accounting Functions