Large LCD Display The calculator can display 12 digits, the screen is clear and does not hurt the eyes, which is convenient for long distance reading. Solar and battery The calculator is powered by solar energy or AA dry batteries (battery not included). When ambient light is intense, solar energy provides energy. Please install AA batteries when the light is low to make sure the calculator works. Large Keys The keys on the calculator are made of high quality plastic material, large buttons for convenient input, which makes your experience more satisfying. A good partner to work The calculator can perform common mathematical calculations and various financial calculation functions, speed up calculation processing, help you reduce miscalculations and improve calculation accuracy. Multifunction The calculator is significant functions, plus, less, multiply, divide, totalize, CE, M+/M-/MRC and ON/AC buttons, the calculator will automatically turn off after about 5 minutes when it is not working.