1. Durable and reliable.
2. Corrosion-resistant sheet, fast calculation speed and low energy consumption.
3. Dual power: Solar and 1-section AAA battery (Not included when shipping).
4. Display: Using Japanese LCD, the font is real, clear, dark, and has no shadow.
5. Size: 12 x 16.7 x 3cm; weight: 145g
6. Material: ABS