Pocket calculator HL-4A Anthracite. 1-line, 8-digit display with large numbers.root calculation.percentage calculation.memory function.sign change.automatic switch-off.incl. battery LR54. Technical data: . Display (type, size, lines/digits/resolution): 1-line - Display (digits): 8 - Display type: LC display - Weight: 27 g - Manufacturer's colour: Anthracite - Product type: Pocket calculator - Product dimension, width: 56 mm - Product dimension, height: 9 mm - Product dimension, depth: 87 mm - Power supply: LR54 button cell, incl. - Power supply (LOV): battery operated.