Sharp Electronics EL1611PA Printing Calculator. Extra Large Display with 8 digit LCD display with punctuation Metal Cabinet is a durable design for longer life Twin Power Solar Operation automatically switches from solar cells to battery power in low light 4 Key Memory includes memory plus, memory minus, percent and recall and clear memory keys Rate set function Twin-powered basic hand-held calculator Extra large, 8-digit LCD display with punctuation Twin power solar operation automatically switches from solar to battery power in low light 4-key memory includes memory plus, memory minus, percent and recall/clear memory keys Durable metal cabinet construction