Runzon RZ-819 Electronic Calculator

The Runzon RZ-819 appears to be a desktop calculator with the following visible features:

• Large, colorful round keys: Suggesting ease of use and a potentially playful design.
• Standard arithmetic functions: Addition (+), subtraction (-), multiplication (x), and division (÷) are clearly present. 
• Memory functions: Indicated by the “GT” (Grand Total) key.  
• Clear/Clear Entry key: Labeled “CE”.
• Power button: With the standard power symbol.
• Numeric keypad: Ranging from 0 to 9.
• Decimal point (.) key.
• Double zero (00) key.

Based on the limited visual information, it seems to be a basic electronic calculator suitable for general calculations in homes, offices, or schools. The packaging mentions “Electronic Calculator”.