Upgraded 991ES MAX Rechargeable Scientific Calculator with Writing Tablet,ROATEE 417 Function Solar Battery Professional Portable Notepad Back to School Supplies for Student, Teacher

ROATEE Scientific Calculators, Desktop Calculator for Office, Back to School Supplies [Rechargeable & Solar Panel] -The rechargeable calculator does not need to replace the button battery, and also comes with a type c charging data cable. It is also powered by solar energy, so you don't have to worry about running out of battery. [Scientific Calculator with Notepad] - This scientific calculator for Engineer intergrates calculation and notebook with a stylus pen. The lcd writing tablet enables you to take notes during the calculation, which do great help for study and work. Great portable high school supplies! [NOTE]Only Unlock the LOCK KEY will the writing area and the erase button work. [Anti-Drop Body with High Durability] - The body of this engineering calculator undergoes rigorous quality tests. Due to the design of anti-drop body, no need to worry about the damage by accidentally falling. [Lightweight and Portable Design] - This lightweight scientific calculator with writing tablet only weighs 5 ounces.It can be easily put in your pocket, which is convenient for business and college.