Drie-in-één zonne-energiecalculator - 10-cijferig lcd-scherm, tekenen, notitieboek, wiskundige berekeningen

10-Digit LCD Display Clear, easy-to-read 10-digit LCD display for accurate mathematical calculations. Portable Design Lightweight and compact design makes it easy to carry around. Certified Safety CE certified product, ensuring safe and reliable operation. Solar Power Source Eco-friendly solar power source ensures continuous use without the need for batteries. Three-in-One Functionality Combines calculator, drawing, and notebook features for versatile use. 1. Portable 10-digit display 6.5-inch scientific calculator with a graphics tablet, stylus and erasure button, suitable for function calculation and general mathematical calculation in offices and schools for students 2. Solar-powered scientific calculator with writing board, functional engineering calculator, financial calculator, suitable for student offices in schools 3. 6.5-inch 2-in-1 portable scientific calculator, LCD screen writing pad, foldable scientific calculator, digital drawing pad with stylus 4. 10-digit large-screen scientific calculators, foldable notebook calculators, and graphic tablet computers are suitable for daily use, office computing, and school mathematics teaching. Silicone rubber keys are noiseless