Aurora Deskop Calculator DT401

Display digits: 12. Adjustable tilt display. Square root key. 4 key memories. plus/minus change sign key. Mark up key. Backspace correction key. Selectable decimal point: F, 4, 3, 2, 0, A. Rounding. Double zero key. WxDxH: 165x228x32mm. Power source: 1xLR54 batteries.