Advanced Battery-Powered Mechanical Calculator: Crafted from ABS materials and featuring a faux mechanical keyboard design, our calculator offers large, retro round buttons that are tactile and easy to use. This aesthetically pleasing device comes with 1 AAA battery. Enhanced Visibility: Enjoy the clarity of a specially modulated pigment on the 12-digit LCD display that ensures numbers appear crisp and easy to read. This large display is perfect for detailed calculations, making it perfect for both professional and educational settings. Efficient Typing Experience: This typewriter-style calculator is equipped with a 10-key layout, featuring computer keyboard-like large buttons that are effortless to and reduce input errors. This design ensures accuracy and speed in your calculations. Practical Design for Everyday Use: Our aesthetically designed calculator is optimized for stability with a layout that sits comfortably on desks, countertops, and tables. Its moderate size makes it portable while maintaining easy usability, perfect for dynamic office environments. Versatile Functionality for Professionals: perfect for financial analysts, bank staff, and data analysts, this calculator supports basic calculations essential in business, retail, schooling, and home office scenarios. Its reliability and user-friendly design an indispensable tool in any professional setup. Note:The appearance from batch to batch, but it does not affect the use. Colour:As Shown Material:ABS Package Contents: 1 * calculator(silent version) 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.