Mechanical Calculator 12 Digit Large LCD Display Big Round Button 15°Tilt Screen Cute Candy Colored Dual Power Supply Calculator Suitable for Office School Home for Kids Students Accountant Features: [Large Round Keys]: This calculator features large, round keys that provide a comfortable and smooth typing experience, reducing the risk of errors during calculations. [Mechanical Keyboard]: The mechanical keyboard design offers a tactile response for each keypress, which enhances the accuracy and speed of your calculations. [12-Digit Display]: With its clear 12-digit display, you can perform large calculations easily, making it an ideal tool for office work, accounting or student use. This 15 ° tilt screen for optimum field of view and stability. It is convenient and comfortable to calculate and read. [Battery Powered]: Powered by 2x AAA battery (not included), this calculator is energy efficient and provides long-lasting operation. Plus, Built-in solar energy panel, convenient to provide the solar power even the battery is power off. [Versatile Use]: Whether it's for office work, accounting tasks or student homework, this calculator is designed to cater to a wide range of numerical computation needs, offering professional-grade reliability. Specification: Color: Purple, White, Pink, Blue(Optional) Size: 15.3x14x2.5cm Weight: 220g Main Material: ABS  Power: 2xAAA battery (Not included) Package Weight: 250g/8.8oz Package Size: 17x14x2.5cm/6.7x5.5x1in Packing List: 1 x Calculator