Imitation Mechanical Button: This calculator is designed with mimic mechanical keys, which are comfortable and sensitive, with a strong tapping sensation that brings pleasure every time you use it. Clear LCD Display: The calculator features a 10-digit digital display that can be placed on a desktop and is compact in size, so it won't take up too much space and is easy to use. Only 3.7 5.9 inches. 15 design: 15 design of the display, clear screen, and scientific and reasonable layout, to improve the comfort of use, to avoid fatigue caused by prolonged use. Gradient Color Buttons Transparent Appearance Design: There are four colors pink blue green, and purple. Green calculator is stylish and popular. There are four non-slip feet on the bottom, which can increase the friction when placed on a flat surface and keep it stable, and convenient for daily use. High Quality: Transparent body, good quality, and wear-resistant. Warm tips: the calculator uses one AAA battery, this product does not include the battery.