Feature: It's a cool calculator with a writing board and pen. Compared with the traditional basic calculator, this desktop calculator is not only modern in appearance but also easy to record. Extra large 12-digit LCD display, tax calculation can be quick and easy. Press the erase button to erase notes and protect personal privacy. One-click erase: This calculator is equipped with a hidden pen, you can record at any time. And the writing board can also be erased with one click, it can effectively save paper. Foldable design easy to carry, this pocket calculator is a perfect choice for office, school, home use and so on. Learning tool: It can effectively help students complete their math homework. Perfect gift: Scientific calculator can be a delicate and decent gift for your friends, families and colleagues. Product specification information: Screen material: HD LCD screen Battery: Button cell Product size: 162x82.2x18.3 mm Net Weight Product: 128g Material: ABS color: black Package contents: 1 x Calculator Notepad Only 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 +/- 1-3 cm.