FunctionsBlack coloured calculator , designed and engineered for easy operation,Large keypad for comfortable use of the user,Both solar powered and battery powered according to the availability of light,It has a large display so that it is easy to read and use. Dimensions (D × W × H) : 191×140×35 mm,Color coded keypad for easy key differentiation,It has a complete calculation feature with a full decimal system,Displays numbers in three digit separator formats.