Built-in 2-color, 12-digit serial printer lets you keep records of your calculations Large (0.44in.) fluorescent display is easy to read. Professional-style keyboard allows for easy calculations. Compact body fits comfortably in your bag or backpack. Performs convenient Cost/Sell/Margin calculations, as well as Grand Total and Tax functions. Includes 1 lithium battery (installed), 1 paper roll, 1 ink roller (installed) and an operation manual. Sharp(R) EL-1801V 12-Digit Printing Calculator is one of many Printing Calculators available through Office Depot. Made by Sharp.