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[Featured] 1)Dual Power Option:Solar power and battery power make it works even longer 2)Large Display: Large LCD display,easy to read 3)Professional Design:Scientific button design,In line with the use of human habits and comfortable for touch 4)High Quality:Black panel with gray and green button fashion style, ABS material durable plastic buttons have a good feel to them 5)Occasion:General purpose desktop calculator, perfect for home, office or store 6)A nice gift for your family,friend or colleague