Máy tính khoa học với máy tính bảng viết 991MS 349 chức năng Máy tính tài chính kỹ thuật cho văn phòng học sinh 20262026

Scientific Calculator With Writing Tablet 991MS 349 Functions Engineering Financial calculator For School Students Office SolarDESCRIPTION: Model name: NY-991MS【Scienticfic Calculator with Notepad】Come with a 6.5-inch writing tablet and a pen, which allows you to take notes while calculating. You can press the delete button to erase the notes, and also can lock it to keep them.【349 Computing Functions】Include fractions, statistics, complex number calculations, linear regression, base arithmetic, computer science, standard deviation, polar-rectangular conversions, etc..【More Sensitive Key】Adopt a premium plastic material key, which makes it more sensitive and more precise than a silicone key. Comfortable to touch.【Solor Energy】Solar panel + replaceable button battery for smooth trial and long battery life.【Foldable & Portable】NEWYES Calculator Notepad is foldable, closed to dust, easy to store, and easy to carry. Ideal for junior & high school students, college students, and professional researchers.