This is a set of 2 calculators. I - BA II business financial & 1 - scientific calculator. The Texas Instruments BA II PLUSFinancial Handheld Calculator is a sleek and powerful device designed for financial calculations. With a regular-sized keypad and display, this handheld calculator is perfect for on-the-go use. Powered by batteries, it ensures convenient and reliable performance. The calculator also features an LCD display and calculus functions, making it a versatile tool for various business and personal finance tasks. The trusted Texas Instruments brand ensures quality and accuracy in all your calculations.