In general, yes,
The charger interface automatically matches the protocol. Huawei FreeBuds 4 not only adopts split design, but also supports active noise reduction.
freebuds4 charger can be used universally. Huawei Bluetooth headphone charging cable and Huawei mobile phone are universal, are typeC port charging cable.
Huawei freebuds4i this headset only with wired charging, does not support wireless charging
Therefore, there is no way to wireless charging or reverse charging
If you do not use the headset for a long time, it is recommended to recharge the headset at least once a week to avoid battery damage.