14 digit calculator, 14 digit digital screen display, comfortable viewing angle Six major features, 14 digits, large screen display, power-saving shutdown button, external battery, plastic button, widely used Comfortable plastic buttons, wear-resistant text on the buttons, clear and clear numbers, and lightweight and textured buttons Four corners are equipped with anti slip pads, which are not easy to fall off. Dual power supply, automatic shutdown Widescreen display, with large fonts for easy calculation and improved computational efficiency
