[Large 12-digit Display] The large LCD screen displays big, clear numbers for easy reading from a distance. Supports up to 12 digits. [Dual Power Design] Powered by both solar energy and battery (battery included). In well-lit environments, the solar panel provides continuous power. [Sensitive and Big Buttons] Large, responsive buttons quickly register input and display results. Scientific design ensures comfort and ease of use. [Multifunction] Includes addition, subtraction, multiplication, division, backspace, grand total, CE, percent, memory functions (M+/M-/MRC), ON/AC, and auto power-off after approximately 6 minutes of inactivity. [Best for Home & Office] A reliable desktop calculator ideal for business, office, home, school, or anyone needing everyday calculations.