991EX Multifunctional Statistics Base Matrix Vector Calculator

1. Shell material: plastic
2. High-resolution LCD display, clear readings
3. 552 kinds of functions, exams and daily learning can be used
4. Key comfortable, fast calculation speed
5. Durable material, not easy to corrode
6. Protective cover design, to protect the body, keys
7. Number of display bits: 12
8. Power supply: built-in button battery
9. Size: 76 x 165 x 12mm
10. Weight: about 125g