1.75寸DSP蓝牙音箱,11.1V2600mah18650电池
【成本百元出头diy的1.75寸带dsp调音的蓝牙音箱】 https://www.bilibili.com/video/BV19z421S7SD/?share_source=copy_web&vd_source=1fd505f253deea3df0841ec5734bfa00
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