CANON WS-1210THB Desktop Calculator 12digits Dual Power, "IT-touch" keyboard Display Extra large LCD Angled Display Adjustable tilting display Digit Comma Separator 3 digit comma separator Rounding Round up/off/down Key Roll-Over Key roll over function for fast and accurate data entry Auto-power Off Memory 1 + GT Power Source Dual power (Solar and Battery) Battery CR2032 Body Colour Black CANON CANWS1210THB 1210