Sharp Calculators EL-344RB 10-Digit Handheld Calculator - 3-Key Memory, Sign Change, Auto Power Off - Battery/Solar Powered - Battery Included - 0.3" Height x 2.7" Width x 4.7" Depth - Gray, Black - 1 Each

10-digit calculator with a protective wallet case features 44 built-in, metric conversion functions to help you make quick, simple calculations. Easy-to-read, extra-large LCD showcases sharply defined numbers to help prevent reading errors. Conversion keys are colored in a different shade for simple operation. Rubber keys are durable to withstand daily wear-and-tear and fading for lasting performance. Twin-power operation runs on solar energy with a battery backup to deliver consistent, reliable use in any environment. Handheld calculator also includes change sign, percent, square root keys, three-key independent memory and more.