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  • Overall Rating: 5
  • Price: 5
  • Quality: 3
  • Ease Of Use: 4
  • Usefulness: 4
A very fine calculator – Stainless Steel Mini Abacus Counting Frame Keychain Reviews

posted by rroel on 01/22/2012 Certified Owner

Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

Pros:
my smallest calculator to date!
It's cool and works for calculations, up to 10^8 - 1, which is sufficient for most cases.
Cons:
Misses points on usability and ease-of-use since I don't know how to make it calculate roots. Misses some features compared to electronic calculators or paper and pen.
I used it as a decoration on my bag and the chain broke after a a while. Will probably get a new one next time I order though :)
Other:
Somehow not mentioned here, but it "Brings you joy and enhances your IQ all the way" :)
Bottomline:
Never runs out of batteries, and it holds keys. I love this product. i bought one for me, and one for my mother who didn't know how to use an abacus.

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