I used this calculator for about 2 months, then the buttons of this calculators began to loose the numbers and symbols printed on it and it was impossible to recognize them, the build quality was also not soo good, and at the end of second month the numbers in the display also appeared very dull.
This is not a user friendly calculator as it looses its buttons number and symbol colours very quickly and the battery becomes weak very early and the solar power also does not work properly.
This is not a durable calculator as it hardly works well for 3-4 months thereafter it becomes useless, and build quality also not good, if once by a mistake you make it fall down, it will break and does not display the numbers.
Overall not a calculator which should be bought and do not even think that it will help you for a long time.
