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注意：
* 设备电量低时应尽快为其充电，电池若长期处于低电量状态会降低电池的使用寿命；若您想将此设备存放
起来，也应先将设备充满电后再存放，并每过3-6个月再给音箱充一次电。
*
建议不要边充电边使用此设备，避免您的供电设备与乐器设备相互干扰进而产生噪音
。
NOTICE:
*
The device should be charged as soon as possible when the battery is low. If the battery is in a low battery
state for a long time, the battery life will be reduced; if you want to store the device, you should also fully
charge the device before storing.
* It is recommended not to use this device while charging, to avoid interference between your power supply
equipment and musical instrument equipment and cause noise.
