This Texas Instruments BA II PLUS Financial Handheld is a must-have for anyone in need of a reliable and efficient calculator. With its regular-sized LCD display, this calculator is perfect for business and industrial use, as well as for office equipment. It runs on battery power and is equipped with a variety of features, including a calculus function, making it an ideal tool for financial calculations. The calculator is made by Texas Instruments, a trusted brand known for producing high-quality calculators. Its model number is BA II PLUS, and it is categorized as a financial calculator.