Casio Desk Calculator MX-8B. 5/4 Function: No. Auto Rounding: No. Tax Calculations: No. Power Supply Type: Solar, Battery. Correction Key: No. Cost, Sell, Margin Function: Yes. Mantissa and Exp.: No. Display Screen Type: LCD. Double Zero Key: No. Thousands Seperator: Yes. Memory Keys: 4. Variable Memory: No. Grand Total: No. Parentheses: No. Decimal Select: No. Margin: No. Naturel Display: No. Percentage Function: Yes. Statistical Calculations: No. Sign Changing: Yes. Text Book Display: No. Time Calculation: No. Up Function: Yes. Currency Conversion: No. Profit Calculation: No. Square Root Function: Yes. Cut Function: No. Battery Size Supported: LR1130. Dimensions: 29 x 107 mm (h x w). Colour: White.