1. Calculator with Notepad: Have you ever been in a situation where you needed to record a number during calculation but couldn't find pen and paper? This financial calculator combined with a liquid crystal writing board can solve this problem. It was designed by a Japanese person who advocates paperless environmental protection. You can take notes while calculating, making calls, or attending meetings, which may improve your learning and work efficiency. 2. Lightweight and Portable: This mini calculator weighs about 210 grams and comes with a flip cover to protect the keyboard. You can put it in your pocket or bag. It is easy to carry and can be taken out for use when needed. 3. Healthy and Environmentally Friendly: Its liquid crystal screen is designed without blue light to help protect your eyes. The writing board has a one - key clear function and can support repeated writing up to 50,000 times. The calculator doesn't require paper, ink, or produce dust, which helps reduce paper consumption and is environmentally friendly. 4. Dimensions: Approximately 215 x 158 x 13 mm. Material: ABS Color: Black Package Contents: - 1 calculator with notepad - 1 English instruction manual The package mainly includes the above - mentioned items and generally doesn't include other products. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual one. A measurement error of ±1 - 3 cm is acceptable.