1. Charge the charging box
Connect the charging cable,
a. Charging box is charging: the number flashes, and the number is the current power
b. Charging box is fully charged: the digital display is 100 and stops flashing
2. Charge the Earbuds
Put the Earbuds in the charging box,
a. Earbuds are charging: the indicator light is steady red
b. Earbuds are fully charged: the indicator light is off