calculator with writing tablet

Brand NEWYES Calculator Type Engineering/Scientific Power Source Battery Powered Screen Size 6.5 Inches Number of Batteries 1 CR2032 batteries required. (included)     About this item 【Scientific 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 it. 【349 Computing Functions】Include fractions, variable statistics, complex number calculations, linear regression, base arithmetic, computer science, standard deviation, and polar-rectangular conversions, etc.. 【2-Line Display】Show entry and calculated result in the display screen at same time. 【Solar Energy & More Sensitive Key】Solar panel + replaceable button battery for long-term use. Premium plastic key, more sensitive and precise than silicone key. Comfortable to touch. 【Foldable & Portable】NEWYES Calculator Notepad is foldable, closed to dust, easy storage, easy to