1. Durable and reliable. 2. Corrosion-resistant sheet, fast calculation speed and low energy consumption. 3. Dual power: Solar and 1 x LR44 battery. 4. Display: Using Japanese LCD, the font is real, clear, dark, and has no shadow. 5. Size: 8.1 x 15.6 x 1.7cm; weight: 132g 6. Material: ABS
