- Desktop Calculator Extra Large 5-Inch LCD Display 12-Digit Big Number Accounting Calculator with Giant Response Button, Battery & Solar Powered, Perfect for Office Business Home Daily Use(OS-6815GN)

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.

Exactly as described: a good basic calculator, uses an easily replaceable battery, easy to see display, keys are of good size. Could do without the Grand Total appearing at times (can't be turned off). Good buy for the price.

Works like a charm. Large display. I like the idea that solar power is backed up by batteries!

Gift for hubby, he's a business owner and uses it in his office. He really likes that the calculator has larger buttons and bigger screen. He says it works great! It also works by solar and battery too!

Screen came slightly distorted but works well, large & easy to press buttons

Larger display and easy to use.

Great calculator!!! Easy to read and functional

Great calculator the key buttons are very smooth and is real light and is a 12 digit number and is very useful and handy so I would recommend it very good quality.