Basic Desktop Black Currency converter Tax calculation 12 digits LCD Battery/Solar LR44 Large buttons and an easy-to-read display: these professionally designed calculators ensure correct results in the office. These models stand out thanks to a variety of functions and a sophisticated style. Design Ergonomic design Yes Non-slip feet Yes Control type Buttons Cover No Housing material Plastic Product colour Black Type Basic Form factor Desktop Performance Currency converter Yes Tax calculation Yes Symbolic notation Square root Conversion between Percent Display Easy-to-read display Yes Digit comma separator format Standard (3 digits) Digit comma separator Yes Backlight display No Display character size 124 x 2 mm Display number of characters 12 Display number of lines 1 lines Display size (HxV) 124 x 2 mm Display tilting No Display type LCD Digits 12 digits Power Auto power off Yes Battery type LR44 Number of batteries supported 1 Power source Battery/Solar Weight & dimensions Height 29