12-digit thermal printing calculator features Prompt Logic technology. The interactive display prompts you for input to calculate installment loans, currency conversion, cost/sell/margin, tax settings and program text. Help key explains the various features either on the display or on the tape. Loan Wizard quickly and easily calculates payments. Currency exchange allows you to work in two currencies with the push of a button. Text keys store and print up to six custom messages on your calculator tape printout. With simple prompting, program key helps you set tax rates, currency rates, time, date, language and opening message. Calculator prints 8.0 lines per second. Reprint up to the last 25 transactions at the push of a key. Other functions include currency exchange, cost/sell/margin keys, time calculations, and two independent tax keys. Design includes a two-color backlit, liquid crystal display (LCD). Printing calculator is AC-powered.