Power Source : Battery Display Type : LCD Display Digits : 10 Memory : 1-Key Functions : Factorials, Hyperbolic Trigs, Logarithms, N-Base Calculations, One Variable Statistical Calculation, Powers, Reciprocals, Roots, Trigs Battery Type : LR1130 Number Of Batteries : 2 Color : Black/Green Dimensions : 2.9 In W X 0.4 In D X 5.7 In H Includes : Protective Hard Case