Casio Desk calculator

Dual power supply (Solar + Battery)
Solar operation in sufficient light, battery operation in insufficient light.

Function command symbols
A symbol (+, -, ×, ÷) on the display indicates the current operating status.

Key buffer
Key inputs are stored in a buffer, ensuring that nothing is lost even during rapid input.

Extra large display
A larger display makes it easier to read more data.

Plastic keys
Designed and constructed for easy operation.

Tax and exchange rate function
Functions for tax calculation and currency conversion.

Profit margin percentage
The "%" key allows quick access to prices and profits, as well as providing markups, discounts, ratios, and values for increases/decreases.

Robust metal front panel
The durable cover withstands rough handling.