Yes, the power input interface specification of the charging box is 5V 1A, which can be charged directly with the charger. After the charging box is full, it can be easily carried to charge the headset.
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In theory, it should be possible, but the charger of the Huawei watch seems to have a recognition function, and the wireless charging starts only after the recognition, and the charging speed seems not enough.
Huawei Wireless charging Charging headset charging case?
It should not be possible, because the earphone charging box does not have wireless charging, and can only be charged with a data cable