From the manufacturer

CASIO
CASIO is one of the international manufacturers of electronic consumer goods. True to the principle of “creativity and contribution”, the company has been dedicated since its founding in 1957 to the development of products that stand out for presenting modern technology and design.
Currently, the global range of CASIO products encompasses the production of watches, digital cameras, mobile phones, electronic dictionaries, calculators, musical instruments, projectors, charging systems, portable terminals and electronic components, such as LC displays.

Scientific and technical calculator
The calculator has a compact format with a hard shell and dot matrix display that allows you to clearly visualize complex calculations. It includes features that allows you to use it for elementary math, statistics, differential calculus, and integral calculus.
Debit to the two power modes, the calculator receives the necessary power by solar power and works with backup batteries as well.