1、Large Buttons: The calculator features large LCD display and round button. The buttons are soft and flexible, providing a comfortable grip while inputting numbers or performing calculations. 2、LCD Display: The large button calculator is equipped with spacious LCD screen that displays 12 digits. The screen can be tilted for easy reading and ensures clear visibility of calculations. 3、Anti Slip Design: The 12 digit calculator comes with anti slip pad, ensuring it stays securely in place on your desktop. The pad prevents slipping or accidental drops, making it ideal for desktop use. 4、Detachable Keyboard Cover: The desktop calculator has a detachable keyboard cover, providing a tactile feel and making it easy to install and remove for cleaning. 5、Auto Power Off: The mechanical calculator supports automatic power off, conserving battery life by automatically shutting down after a few minutes of inactivity.