ROATEE Desk Calculator with 6 inch Writing Pad, 12-Digit Solar Battery Calculator for Office, Home, School

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【 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.
[Useful Functions] ​- Grand Total/Markup/Memory Clear and Recall/Memory Add/Subtract Function keys help with basic and complex calculations.
[Versatile Purposes] This calculator is designed for many occasions: business, office, home, basic budgeting, school, and more. Use it to assist your personal finance or just a quick calculation session.
[Sensitive and Big Buttons] Your calculation process will be faster and smoother with this calculator’s responsive buttons. Once pressed, the buttons quickly register and display the corresponding number on the screen. The big size of the buttons prevents you from hitting the wrong button.
【Solor Energy】Solar panel + replaceable button battery for smooth trial and long battery life.