Tilted LCD screen with 12 digits, solar/battery power, basic arithmetic, sign change, percentage, memory function, tax calculation, Mark-up/-down (MU), check & correct function (HP-OC300II/INT-BX)
| Batteries included | No |
| Power supply | Batteries, Solar energy |
| Colour | Noir |
| Dimensions H x W x D (cm) | 2.9 x 15 x 15.8 |
| Number of digits | 12 |
| Weight (Kg) | 0.25 |