How do I tell when my NINGBO STAR CT02078 speaker is fully charged?

[StMaverick]

To know when your NINGBO STAR CT02078 Portable Speaker is fully charged, keep an eye on the LED indicator. When you plug the speaker in using the USB cable, the LED will show a solid red light while it's charging. Once the speaker is completely charged, this red light will switch off. Make sure to wait for the red light to disappear before you unplug your speaker. This helps ensure a full charge and can prevent any battery issues, keeping your NINGBO STAR CT02078 speaker performing at its best for longer.