14 digit office calculator, simple calculation and regression,
Office is not boring, six highlights analysis, dual solar power supply, fashionable and atmospheric appearance, 14 digit display, automatic sleep and power saving, comfortable plastic buttons, dual LCD large screen display
Large screen display with clear handwriting, digital presentation, 12 digit large screen design, convenient for calculation
Adopting solar energy and batteries, dual energy drive, long-lasting range, and longer working hours
Plastic large buttons, concave and convex fit, comfortable feel, better operation, and clarity
After a period of inactivity, enter power-saving mode and press any key to wake up
Dual LCD display screen, dual screen display, comprehensive, visible to both parties during calculation
