Professional 12-digit desktop calculator with 120-Step Check & Correct, Auto Check, dual solar and battery power, large display and durable design for office, retail and business use. The Canon WS-1212R Desktop Calculator is a premium 12-digit desktop calculator featuring a large angled LCD display, 120-Step Check & Correct function, Auto Check, memory functions, square root, percentage, correction key, dual solar and battery power, decimal selector and rounding selector. It is ideal for offices, accountants, retailers, students and everyday business calculations.