Multi-Function Portable Desktop Calculator For High School, Office Meetings, And 3 In 1 Design: The calculator is equipped with a notepad and a stylus. You can take notes while calculating without paper, which improves learning and work efficiency, saves your time and is more convenient. 10 Digits Display: This scientific calculator is equipped with a 10-digit display and a LCD writing board., the calculator and tablet are powered by their own battery. Portable Slim: This upgraded calculator is slim and light (only 4.05 oz). Folded design protects the scratch pad surface and is easy to carry. You can put it anywhere such as schoolbags, briefcases, pockets, etc. Mute One-key Erase: This calculator uses silicone buttons to keep silent during use. There is a button at the bottom of the writing tablet to clear the screen. Multi-purpose Scientific Calculator: This multi-purpose calculator can be used as a calculator, and can also be used for drawing exercises. It is simple to use, suitable for students, teachers, and business personnel.