Intuitive key layout and key shape that varies from line to line to allow for different finger movements.
Comfortable touch on the keys that doesn't tire the fingers (like a desktop computer).
Round shape and easy-to-use panel molding.

Product features
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Number of digits: 8 digits

Liquid crystal display
Extra large screen
Function command signals
3-digit thousand separators

Plastic keys
Memory keyboard
Sign change (+/-)

Memory: Independent memory
Power supply: Solar and battery

Size (W × D × H): 148.5 × 101 × 27.6 mm
Weight: 105 g