Features: 【Dual Power Supply Design】Supports solar and battery operating, ensuring stable performances across varying light conditions. 【12-Digit Large Display】Provides clearer numerical readouts, minimising misreading risks. 【Durable ABS Construction】Utilises highly quality ABS to enhancing the calculator's abrasion resistance and impacts resiliences. 【Ergonomic Key Layout】Features auto off comfortable button design that reduces fatigue during extended use. 【Lightweight and Portable】Its compact design allows easy storage in backpacks or briefcases without taking up space. Specifications: Component: ABS Size: 204x158mm easy to carry and place Power： supports solar and battery power supply Type: 12-digit large screen display Battery： (not included) Package Includes: 1PC office calculator note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.