Mr. Pen solar scientific calculator gives you reliable, advanced calculating with a clear 2-line screen and dual-power convenience for school and daily study.

• Professional-grade capability — includes 240 scientific functions for advanced math and science work.
• 10+2-digit widescreen HD display — easy-to-read numbers and calculations for quick checking.
• 2-line display — shows your entry and the calculated result at the same time for fewer errors.
• Great for fractions & statistics — built for high school, college, and everyday coursework.
• Protective hard cover — helps prevent scratches and dings in backpacks and desk storage.
• Dual-power source — runs on a solar panel (works only when it is bright) plus battery for dependable use.