This Olympia 2502 is a 10-digit desktop calculator with basic functions, perfect for everyday use. It features memory functions (M+, M-, MR, MC), Grand Total (GT), root function, and percentage calculation. It also includes correction keys (ON/C and CE), manual OFF, and dual power (battery and solar cell) with auto power off. The calculator uses an LR 1130 battery and comes with a manual in multiple languages: DE, EN, FR, IT, NL, ES, GR, PL, CZ, SK, HR, AR.