Calculator with Notepad:This desk calculator and notepad are designed in one piece,you can make notes while calculating,improve study and work efficiency.The solar calculator supports calculations with up to 12 digits and notepad acts as a cover to protect the calculator from dirt.Press the clear button to erase the notes and protect personal privacy. and Portable:This is a calculator with writing tablet,foldable design, weighs only 4 oz.It is so compact that you can carry it in your pocket,can be quickly removed and used immediately when needed,convenient for taking notes on phone calls and quick notes. Healthy and Eco-friendly:The blue light-free LCD screen is used to protect eyes,when you are not using the calculator,you can also put it on your desk as a notepad.It can be written repeatedly, reducing paper consumption and being environmentally friendly,there is no need to use a shredder to process the paper. Mute Design:Adopt high quality button, feel comfortable, suitable for daily calculations.Mute button others, suitable for office,learning and a of use scenarios. Dual Power Design:This is a solar and battery dual power financial calculator(battery included),it can be fully powered in any lit environment.This is an exclusive product, ! Material:Composite material colour:black Package Contents: 1 * Calculator 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 +/- 1-3cm.