Mengshen KA06P 14-Digit Portable Office Calculator with Large LCD Display, Solar and Battery Powered Dual-Power Electronic Calculator (Red)

[High Quality]: The buttons feature a double-contact design for greater comfort and fatigue resistance. High-quality silicone resin material is more effective, more accurate, and has a longer lifespan—up to 1 million times. [Design]: The circuit board (94HB) is environmentally friendly, anti-oxidant, corrosion-resistant, and responsive. It ensures high speed and efficient calculations. [14 Digits]: Allows for large data calculations. [Plastic Buttons]: The scientifically engineered buttons, large buttons, and excellent reset function increase comfort. [Easy to Hold]: Comfortable to hold, making it the perfect choice for both office and home use.