This cool calculator features a writing tablet and pen. Compared to traditional basic calculators, this desktop calculator is not only modern in appearance but also easy to use for note-taking. Extra-large 12-digit LCD screen for quick and easy tax calculations. Erase notes with the touch of a button, protecting your privacy. One-click erase: Equipped with a hidden pen for on-the-go note-taking. The writing tablet can also be erased with one click, saving paper. Foldable design for easy portability, making this pocket calculator a perfect choice for the office, school, home, and more. Learning tool: Effectively helps students complete their math homework. This scientific calculator makes a delicate and thoughtful gift for friends, family, and colleagues. Product Material: ABS shell + silicone buttons Battery: Button cell Color: Black Size: 150 x 90 mm Package Contents: 1 x Calculator Notepad Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is +/- 1-3 cm.