10 digit LCD screen with punctuation Twin power source Large screen display Stylish Metal Cabinet Calculator and metric converter with up to 44 metric conversion functions Converts weight, measurement, volume and temperature applications Compact wallet to protect calculator Fraction calculations and Fraction conversion Free conversion function Specifications Display 10 Digit LCD display Memory 1 ( 3-key memory ) Metric Conversions up to 44 Percentage & Square Root Yes Constant Yes Dimensions (w x d x h) 69 x 119 x 7.1mm Power Source Solar and battery ( LR1130 x 1 )