This 12-digit desktop calculator is made using recycled Canon material to aid environmental sustainability. It features a large upright LCD display and PC feel keyboard. Large upright angle display I.T touch keyboard Tax calculation Features IT Touch Keys - Keypads simulating the form of PC keyboards offer stable strokes and touch feelings. The key touch is accustomed to assist in ensuring fast and accurate inputs. Eco-friendly - In pursuance of the commitment to reduce avoidable energy waste, Canon is devoted in manufacturing our green calculators to the highest standards. Some parts of our green calculators are made from recycled Canon product materials. We're delighted in ensuring sustainability and preserving the environment. Tax calculation - Convenient tax calculation keys save your time by simplifying the repetitive calculations. After setting the tax rate, adding or subtracting the tax rate with one touch is made possible. Display Display Type :Liquid Crystal Display Digit Display: 12-Digit Display Screen Size: 93 x 24.5mm (Large Display) Functionality Constant Calculation: Yes Business Calculation: N/A Tax Calculation :Yes Check and Correct: N/A Auto Check :N/A Memory :Yes (RM, CM, M+, M-) Grand Total: Yes Reverse Key (RV): Yes Sign Change: Yes Shift Key / Backspace Key :Yes Decimal :Yes (+, 4, 3, 2, 0, F) Rounding: Yes (Up, 5 / 4, Dn) Automatic Power Off :Yes (7mins.) General Power Source: Dual Power (Battery + Solar) Dimensions (L x W x H): 175 x 126 x 28mm Weight :186g