Summary: This is a nice, credit card size calculator, which is solar-powered. We bought these for people at work to be able to carry on the lanyards where they wear their ID cards - because we're always being asked to calculate something. These calculators are a nice size, although a little thicker than we were looking for.
Summary: The company selling the item was great to work with, and the product arrived quickly. However, the calculator itself is of very poor quality. I would definitely purchase from this company again, as the quality of the product isn't their fault, but the product itself was a waste of money. It needs almost full sunlight to work, it stutters frequently when pushing the buttons, and I have to press each number a few times just to get it to register.
Summary: I needed a slim calculator to fit in a pocket for my job. I had one many years ago that came in a checkbook, (which always worked no matter how long it was in my purse) so I thought this would do the job. WRONG! It does not keep a charge even if left under a light for 24hrs, which I did, thinking that is what was needed initially. In playing around with it I discovered that this calculator will work if you shine a flashlight on it while trying to type in the numbers.