When freebuds4 is fully charged, it is steady green. When the cover is on for 10S, the power is sufficient (≥ 60%) and when it is steady yellow, the charging box is charging. When the yellow cap is opened for 10S and then closed, the power is moderate (about 20% or 60%); Blinking white indicates that the headset is in the box. Press 2S to enter the pairing state. Blinking red indicates that the headset is in the box, and the button 10S enters to restore factory Settings; Red cover open 10S for warning power (about 20%); When it is not bright, the charging box is exhausted; When the light is off, the indicator will be off when the charger is pulled out.
The Huawei Bluetooth headset charging case lights up orange when it is being charged and green when it is fully charged.