991EX Rechargeable Scientific Calculator with Writing Tablet and Pen 417 Functions for Students and Professionals in Physics NEWYES 991ES MAX EX Rechargeable Scientific Calculator, with Writing Tablet and Pen, 417 Functions for Students and Professionals in Mathematics, Physics and Engineering About this item: 【Innovative Scientific Calculator Design】NEWYES calculator comes with a 6.5" tablet and a pen, which allows you to take notes while calculating. You can press the Delete button to erase notes and also lock it to store them. 【Rechargeable Design】Forget the extra charges for batteries! The NEWYES 991ES MAX calculator uses built-in USB Type-C charging (includes dedicated cable) Ideal for students busy between lectures and exam sessions. 【417 Computer Functions】 Includes fractions, statistics, complex number calculations, linear regression, basic arithmetic, computer science, standard deviations, polar-rectangular conversions and more. 【Foldable & Portable】NEWYES calculator notepad can fold and the LCD screen also acts as a lid that closes for neat storage when you don't need it, fits well in your pocket. It is ideal for students, engineers, teachers and professional researchers. 【Good Quality】NEWYES scientific calculator is durable and has premium plastic keys that are more sensitive and accurate than silicone keys. _x000D_