【Multifunctional Student Calculator】: The scientific school calculator supports calculations with up to 10 digits, data is clear and easy to read, and is suitable for advanced and beginner learners. Includes standard calculator and memory buttons, square roots and percentages, labeled MU, covering basic calculations, scientific function calculations, or other professional calculation functions.

【Reusable Notepad】: The combination of a calculator and a writing board, with the stylus fixed on one side of the board, can calculate and record at any time, effectively improving learning and work efficiency. The handwriting pad has an erase button. You can click this erase button to clear the entire screen, repeat writing, reduce paper consumption, and be environmentally friendly.

【Solar and Battery Dual Power Supply】: The two button batteries can be replaced at any time without installation screws. The solar calculator on the left is powered by LR1120 batteries, or it can be powered by solar energy in a sunny environment, so you don't have to worry about the batteries running out. (Note: The writing board on the right is only powered by CR1220 batteries.)

【Comfortable and Quiet Buttons】: The calculator has silicone buttons that are soft to the touch, quiet and silent. Silent during writing, giving you a more comfortable feeling, suitable for office business, accounting calculations, student computer learning, and various usage scenarios.

【Portable and Practical】: The scientific function calculator is designed as a foldable clamshell type. The calculator's clamshell design can well protect the mechanical calculator keyboard and writing pad, making it easy to carry. Perfect for business work, engineering calculations, accounting calculations, student physics calculations, home use, etc. It is an ideal choice for middle and high school students, college students, and professional researchers.