Upgraded 991ES MAX Rechargeable Scientific Calculator, ROATEE Multiview 4 Line Display with Erasable LCD Writing Tablet, Solar Battery Power Notepad for School…

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 students 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 scientific 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 only weighs 5 ounces.It can be easily put in your pocket, which is convenient for business and college.