The freebudspro3 charging indicator has different colors and blinking modes, representing different states. When charging, the indicator light will turn red, indicating that it is being charged. When the charge is fully charged, the indicator will turn green, indicating that the charge is complete. If the battery level is less than 10% during the charging process, the indicator will flash red quickly to remind the user to charge as soon as possible. If the charging case is low, the indicator light will continuously flash white to remind the user that the charging case needs to be charged. In short, by observing the color and flashing pattern of the charging indicator light, the user can easily understand the power status of the charging case and the headset.