Solar Energy Notepad Calculator

Scientific Calculator with Notepa: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. Solar Energy and 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 and Portable:Our Calculator Notepad is foldable, closed to dust, easy storage, easy to carry. Ideal for junior & high school students, college students and professional researchers.