Feature●Calculator with 2 lines of reading 10+2 digits display.●228 integrated functions, log and trigonometric functions, percentages and fractions. Acid Series●Blue calculator with translucent blue protective case.●Power supply: 2 x 1.5 V batteries (included). Dimensions: 14.2 x 7.3 x 1.5 cm. Instructions included.Description Calculator with 2 lines of reading 10+2 digits display. 228 integrated functions, log and trigonometric functions, percentages and fractions. Acid Series Blue calculator with translucent blue protective case. Power supply: 2 x 1.5 V batteries (included). Dimensions: 14.2 x 7.3 x 1.5 cm. Instructions included.