The Casio FX-115ESPLS2-S is an advanced scientific calculator by Casio, featuring a regular-sized display and key size. It is a handheld calculator that operates on battery or solar power. The 2nd Edition model is designed for office and business use, providing accurate calculations and functions for various scientific and mathematical tasks. With its reliable performance and sleek design, the Casio FX-115ESPLUS is a practical tool for individuals needing precise calculations on the go.