Abacus 2.0

The Future of the Abacus Machine!
- Playback Analysis Function.
You have ability to make playback analysis for on-going or previous series of calculation.
If you are teaching Abacus to students, you don't have to be right next to her/him. You can replay the calculation, once you find your student made mistake.
Start until press the "All Clear" button is the one series. You are able to replay up to 5 series of calculations.
- Pick a Right Digit Size.
You can scale the Frame and pick the right size for your device.
Pick a one that most fit from 10 digits to 27 digits.
- Numeric Number Display Control Function.
You have control to show Numeric Number on the Screen. Toggle it anytime you want.
- It's Silent!!
There is no Noise!!
You can use this Abacus wherever you want.
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