Quality Assurance: this calculator ensures reliable performance for both business and educational purposes. Its robust design is tailored to withstand frequent use in various environments. Advanced Mathematical Functions: Equipped to handle complex calculations, the S81 model is ideal for subjects like mathematics, making it a perfect tool for students and professionals alike. Its comprehensive function set supports a wide range of mathematical operations. Eco-Friendly and Safe: This calculator operates on a button cell, which is not only -efficient but also reduces the environmental impact. It contains no high-concern chemicals, making it a choice and the environment. Portable and Convenient Design: The folding LCD feature of this calculator enhances its portability, allowing it to fit easily in bags and even pockets. Its design makes it an excellent choice for those who need to perform calculations . Clear and Readable Display: The 5.0 inch LCD provides a clear and large display area, ensuring that all calculations can be easily read. This feature is particularly beneficial during extended periods of use, reducing eye strain and improving usability. Description/Features: Experience efficiency and convenience with our advanced 5.0-inch LCD tablet calculator, perfect for business, office, and educational needs. This portable, folding calculator is designed for multi-scene use, ideal for professionals, finance personnel, supermarket cashiers, and students. It features a 12-digit display on a 15-inch HD screen, supporting various arithmetic operations with clear operation symbol visibility. The innovative liquid crystal film technology offers a dust-free, ink-free, and radiation-free writing , ensuring safety and eye protection. The handwriting can be effortlessly cleared with a single click, eliminating the need for pen and paper. Additionally, the calculator includes a storage stylus that fits snugly in a built-in slot, making it secure and easily accessible for spontaneous writing. Specifications: Model: s81 Material: ABS Color: Black Product Type: Arithmetic Calculator Display: 12-bit, 15-inch HD screen Features: Operation symbol display, replaceable battery, draft records Additional: Stylus slot for secure storage and easy access Package Contents: 1 calculator 5.0 inch Only the above package content, other products are not included. Note: Light reflection 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.