Desktop Type 12 digits Regular percent- Regular percentage calculations. Tax calculation- Automatic calculation of price plus tax, price less tax, discount, selling price, tax amount, discount amount, and margin amount. Mark-up/Mark-down- All the mark-up/mark-down capabilities of an adding machine for simplified cost and profit calculations. Two-way power (Solar + Battery)- Solar powered when light is sufficient, battery powered when light is insufficient. Function command signs- A symbol (+, -, ×, ÷) on the display indicates the status of operation you are currently performing. Rounding selector- F: Floating decimals. CUT: Values are cut off. UP: Values are rounded up. 5/4: Values are rounded off. Decimal selector- 4,3,2,1,0 : Specifies the number of decimal places as 4,3,2,1,0. ADD2: 2 decimal places are assumed for entries and results of all addition and subtraction operations. Key rollover- Key operations are stored in a buffer, so nothing is lost even during high-speed input. Extra Large display- Larger display makes more data easier to read. Plastic keys- Designed and engineered for easy operation. Dimensions (D × W × H) : 186×184×40.9mm Weight : 300g