The Genie 520 calculator is a sturdy and reliable companion, designed for convenience and functionality. Here are its key features:

• Handy pocket size
• Fold-up lid design
• Basic functions: Includes all essential calculations
• Easy-to-read 10-digit flat screen
• Power source: Solar-powered with a backup battery (battery included)
• Plastic buttons
• Auto power off
• Dimensions: 118 x 77 x 10 mm

More advanced features include:

• Three-function memory
• Square root function
• Plus/minus key