1.Two in One Innovative Design:It is a combination of a standard basic calculator and a writing tablet, which can effectively save your pen and paper, you can calculate and record the things at the same time. It is very practical and -friendly2. Silent Calculator Keystrokes: Silicone buttons, click is a kind of enjoyment. While calculating the numbers and formulas, Work and study quietly, 't be anxious to disturb people.3. Folding Portable:Clamshell Folding design makes it easy to carry, This pocket calculator is perfect for office, school,home use and so on. you can take it in your bag, pocket or even purse4. Rechargeable: Compared with calculators, products use Type-C cables to charge themselves instead of disposable button batteries. It only takes 1.5 hours to fully charge. A great for an environmentally friendly 5: Display and Buttons:This calculator can do more than just calculate,the accompanying writing tablet can record the results what you .Extra- 12 digits LCD display,tax calculation can be quick and easy.One-click clear allows you to delete the current .Name: Calculator handwriting boardColour:blackMaterial:Plastic + SiliconePackage Contents:1 x Calculator handwriting board1 x Magnetic writing penOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.