The operations are as follows.
Headphone charging
1. Place the Huawei freebuds2pro earphones in the charging case.
Box charging
1. The charging port of the charging box is a bare type-C charging port at the bottom.
2. The earphone will receive a type-C charging cable for charging, and use the standard type-C charging cable to connect to the type-C port of the charging box to charge the charging box.
3. When the charging case is charging, the four indicators on the front will light up the corresponding number of electricity. After 100 minutes of charging, when the four indicators are all bright, it means that the charging case is fully charged.