The Texas Instruments BA II PLUS Financial Handheld is a compact and powerful calculator designed for business, finance, and office applications. With regular key size and display, it is perfect for quick calculations on-the-go. Powered by batteries, this handheld calculator features an LCD display and calculus functions, making it a reliable tool for professionals in various industries. The BA II PLUS model from Texas Instruments offers a user-friendly interface and accurate results, making it a must-have for anyone in need of a reliable financial calculator.