The JM21 doesn't support fast charging.It is recommended to use a 5V2A charger for charging.
Battery capacity: 2400mAh
Battery life: 12 hours (3.5mm standard headphone out)
What power supply adapter is suggested to charge the JM21? 打印
修改于： 星期二, 六月 17, 2025 在 5:48 PM
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