Comprehensive Functionality: Equipped with 417 advanced mathematical functions, this scientific calculator is designed to support students through high school and college-level courses, including calculus, engineering, and physics. Exam Ready: Approved for use in major exams, ensuring students can rely on its accuracy and functionality when it matters most. Dual Power Source: Operates on both solar power and battery, ensuring reliable performance in all conditions without the need for constant battery replacement. User-Friendly Design: Features an intuitive layout and a large, clear display to enhance usability and readability, making complex calculations simpler to perform and review. Color: Black Material: plastic Package Contents: 1 x Calculator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.