The TI-30XS MultiView Scientific Calculator by Texas Instruments is a handheld device with a regular-sized display and key size, perfect for conducting calculations on-the-go. This model is powered by both solar and battery energy sources, ensuring that you can always rely on it for your mathematical needs. The LCD display adds to its usability, making it easy to read and input data. Ideal for office and business settings, this scientific calculator is a reliable tool for precise calculations.