Desktop Calculator Extra Large LCD Display 12-Digit Big Number Accounting Calculator with Giant Response Button, Battery & Solar Powered, Perfect for Office Business Home Daily Use(OS-2135)

Love the non slip and size. Makes one handed calculations easy.

Pour mes travaux de comptabilité

Low cost but useable calculator. It has some useful functions like stringing multiple calculations together (i.e. AxB+C) and facilitating calculation of a long string of numbers that need to be added/subtracted, etc. large, easy to read digits. Large raised keys are easy to press and are far enough apart so it is unlikely I will inadvertently press two at a time. While it does have some photocells, I think you would need a bright area to actually get enough power to operate the calculator. I keep my office lights less bright so they don't interfere with my computer monitor. Fortunately the unit has a compartment for a single AA battery which powers the unit if the light is insufficient for the photo cells to provide enough power.

Item is very good. Large keyboard.

great, big numbers easy to use