Environmentally friendly calculator. 100% solar powered, no batteries required. 70% of the calculator is made from recycled plastic. 12-digit adjustable LCD display. GT function for calculating totals. MU function. Rounding function. Correction button. 3 memory locations. "00" button. Square root calculation. Large solar panel. Weight: 183 g. Dimensions: 132.5 x 184 x 34 mm. Warranty: 1 year.