The Casio DR-250HD Tax Exchange Adding Machine Calculator is a reliable and efficient desktop calculator perfect for businesses and industrial settings. With a power source including both a power cord and a battery, this calculator offers convenience and flexibility for various use cases. The large display and key size make it easy to use, while the 3.5 lines/sec print speed ensures quick calculations. This printing and financial calculator from Casio also features a backlight for enhanced visibility, making it a practical choice for offices in need of precise calculations. Ships from USA