Oppo Enco Air2 Pro Quick Start Manual page 6

Charging
Earbuds
Put your earbuds inside the charging case
and close the case lid.
Charging case
Use a USB-C charging cable to charge the
case.
Specifications
Earbuds model
ETE21
Charging case model
ETE22
3
Charging input (charging case)
5 V ⎓ 1 A
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