Calculator with Writing Tablet - This Office Calculator supports up to 12-digit calculations. And The Scientific Calculator with Notepad has an LCD screen and a stylus (on the side of the calculator), which is convenient for you to take notes while calculating, improving the efficiency of study and work. You can click the button to clear the screen, and the lock function can avoid accidental deletion. Lightweight and Portable - This Pocket Calculator size is only 15x9cm, which is easy to carry and use. Its foldable design makes it more convenient to put in your bags or pockets, saving space. It is perfect for work business, engineering Calculations, accounting calculations, student calculations, home use, etc Mute Design - Desktop Calculator with Erasable Writing Tablet uses high-quality silicone buttons, which are quiet, noise-free and give you a comfortable touching experience. When calculating, the buttons will not make a sound, and will not disturb others when calculating data. It is an perfect choice for office and study. DUAL POWER DESIGN: The Calculator is a great tool for students and professionals. It features a dual power design, This is a solar and battery dual power financial calculator (battery included),it can be fully powered in any lit environment. It has a large LCD display, so you can see your calculations clearly. It also includes a number of features such as a calculator function, a date and time function, and a scientific calculator function. Contents and Note:1 x Scientific Calculator1 x StylusOnly the above package content, other products are not included, Light shooting 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.