Large 10-digit LCD display for clear and intuitive calculation results, reducing input errors. Lightweight and portable design for easy carrying in bags, pockets, or wallets. Dual power sources - solar energy and button batteries - for energy-saving operation. Multifunctional scientific calculator with integrated notebook and pen functions for improved efficiency. Durable and environmentally friendly design with a built-in handwriting pad, suitable for various scenarios such as office work, cashiering, and student use. Introducing the calculator, a versatile and efficient tool designed to meet all your mathematical needs. With its large 10-digit LCD display, this calculator provides clear and intuitive calculation results, reducing the possibility of input errors. Its lightweight and portable design makes it easy to carry around, fitting into bags, pockets, or even wallets. Powered by dual sources of solar energy and button batteries, it is energy-saving and convenient for use anywhere. This multifunctional scientific calculator integrates the functions of a calculator, notebook, and pen, offering an environmentally friendly and efficient solution for learning and work. The built-in handwriting pad allows for durable and dust-free writing, with the ability to clear with just one click. This excellent mathematical tool is suitable for a wide range of users including white-collar workers, financial professionals, supermarket cashiers, and students. With its paperless design and energy-efficient features, the calculator is a must-have for anyone looking to improve their computing efficiency while also being mindful of environmental impact. Whether you're at work or school, this calculator is the perfect companion to meet all your computing needs. Item Name: Calculator Material: ABS Battery Model: 2 x Button Batteries(Included) Product Type: Arithmetic Calculator Display Digits: 10 Whether with Voice Function: No Features: Erasable Writing Board, 10 Digits, LCD Display Size Details: Unfolded Size: 16.1cm x 15.6cm x 0.7cm/6.34" x 6.14" x 0.28" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Calculator 1 x Writing Pen