This product features:
- Regular keys like %, square root and Memory
- Dedicated +/- and Backspace Key. Plastic keys
- Operation symbol on display (+, -. x, ) indicates the status of operation you are currently performing
- Key Rollover: Key operations are stored in a buffer, so nothing is lost even during high-speed input
- Dual Powered – Solar & Battery Solar powered when light is sufficient, battery powered when light is insufficient
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