1. Effortless Complex Calculations: The scientific calculator enables you to easily solve the most complex math problems, equations, and scientific formulas, making it an essential tool for students and professionals alike.2. Dual Power Source: This portable school mini calculatrice features a dual power system with a built-in solar cell for extended use without batteries, and a battery backup for weeks of reliable performance.3. Versatile Use: The multifunctional calculator is perfect for practicing a wide range of math problems, from GCSE and A-level exams to higher-level studies, ensuring you are well-prepared for any challenge.4. Comprehensive Functionality: With just a few steps, this multi-purpose portable student calculator can handle complex calculations, integrals, and logarithms, providing a powerful solution for all your mathematical needs.5. Advanced Features: The scientific vector test calculator is designed with advanced functionalities to support vector calculations and scientific testing, making it a versatile and indispensable tool for students and professionals.Note:Different factory batches may have slight differences in appearance, which not affect the use.Colour:BlackMaterial:PlasticPackage Contents:1 * Scientific CalculatorOnly 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.