Professor of calculation and interactive educational game, 50,000 exercises in the 4 basic arithmetic operations, 5 levels of difficulty, solar powered.
| Power supply | Solar energy |
| Colour | Multicolored |
| Dimensions H x W x D (cm) | 2 x 8 x 15.5 |
| Number of digits | 10 |
| Weight (Kg) | 15 |
| Correction button | No |