Calculator with Writing Pad - This office calculator supports up to 12-digit calculations. The scientific calculator with a notepad features an LCD screen and a stylus (on the side of the calculator), making it convenient for you to take notes while calculating, thus improving study and work efficiency. You can press the button to clear the screen, and the lock function can prevent accidental deletion. Lightweight and Portable - This pocket calculator is only 15x9cm, making it easy to carry and use. Its foldable design makes it more convenient to put in your bags or pockets, saving space. It's perfect for business work, engineering calculations, accounting calculations, student calculations, home use, etc. Silent Design - The desktop calculator with a erasable writing pad uses high-quality silicone keypads, which are quiet, silent, and provide a comfortable touch experience. When calculating, the keys will not make any noise and will not disturb others when calculating data. It's a perfect choice for offices and studies. DOUBLLE POWER DESIGN: The calculator is an excellent tool for students and professionals. It features a dual power design; this is a financial calculator with solar and battery dual power (battery included), it can be fully powered in any illuminated environment. It has a large LCD screen, allowing you to clearly see your calculations. It also includes a number of functions such as a calculator function, a date and time function, and a scientific calculator function. Contents and Note: 1 x Scientific Calculator 1 x Stylus Only the above package content, other products are not included. Light photography and different displays may cause the color of the item in the picture to differ slightly from the real one. The allowed measurement error is +/- 1-3cm.