Victor 1560-6 Two-Color Ribbon Printing Calculator, Black/Red Print, 5.2 Lines/SecComputes present investment value and/or future worth. Prints or displays a partial or entire amortization schedule for loan calculations. Two-key tax function allows you to program two separate tax rates for automatic addition to sales total. Clock/calendar function displays and prints time or date. Power Source(s): AC; Display Notation: Numeric; Number of Display Digits: 12; Memory: 4-Key.