[Multi-Function]It Both a Calculator,a Drawing Board,a Notepad and a Writing .You can make notes while calculating, study and work efficiency[Lightweight and Portable]This is a lightweight calculator and writing have a stylus,foldable design, only 0.3lb.you can carry it in your pocket, bag to make you can use it whenever and wherever.[Protect Your Eyes]This calculator has a display and 12-Digit,and there is no light blue with the LCD writing ,it will protect you eyes when you us it.[Save Electricity]We will put 1 battery inside the calculator which usually use onw year.when you writing on the lcd ,it doesn't consume electricity,and it will off after a few seconds if you 't use it.[ Design]This is a solar and battery financial calculator(battery included),it can be fully powered in any lit environmentcolor:GreyMaterial:ABSPackage Contents:1 x Calculator with Writing 1 x English instruction manualOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.