Casio Scientific Calculator with Display and 199 Statistical Functions fx-290A-N 2-Digit

[Number of digits] 10 digits [Memory] 9 [Size] 161.5 x 77 x 11.1 (mm) [Weight] 95g [Power source] T.W.P (solar cell and auxiliary battery combination) (LR44) [Number of batteries] 1 [Battery life] Approximately 3 years Two-line display type that allows you to check and replay calculation formulas Comes with a slide-out hard case for easy portability