A:Answer That's the power level indicator. Green is regular level, red means it needs to be charged, the rest of the time during use, it shouldn't illuminate at all. If you're using the Logitech Options software, it should tell you the power level as well.
![The text on the image is grouped and corrected as follows:
1. F10, F11, F12: These keys are located in the top row of the keyboard, and they are used to access function keys.
2. 1, 2, 3: These are the number keys in the top row of the keyboard.
3. Sc - - + =: These are the arrow keys in the top row of the keyboard.
4. Backspace, Insert, Home, Page Up, Clear: These keys are located in the bottom row of the keyboard.
5. 1 / - P { [ } ] I / delete: These are the function keys that are used to navigate and modify text.
6. 7, 8, 9: These are the number keys in the bottom row of the keyboard.
7. Page Up, Page Down: These keys are located in the middle row of the keyboard and are used to navigate through documents.
8. Home, End, Page Up, Page Down: These keys are also located in the middle row of the keyboard and are used to navigate through documents.
9. Shift, Ctrl, Alt, Fn, Windows, Opt, Ctrl: These are the function keys that are used to access various system functions and shortcuts.
10. 0, Ins, Del: These are the number keys in the bottom row of the keyboard.
The image shows a close-up view of a black keyboard with the keys labeled, making it easier to identify and understand their functions.](https://pisces.bbystatic.com/image2/BestBuy_US/images/products/6366/6366560cv15d.jpg)
