How to use the charging case?

Under normal conditions, when the wireless charging case is charging the earbuds, the breathing light will not flash and will not be on when the Type-C cable is not connected to the power. When the Type-C cable is connected to the power, the breathing light of the charging case will flash to display its battery power, and the light will be extinguished when fully charged. Each light on the wireless charging case represents 25% battery power.