Traditional Culture Encyclopedia - Traditional stories - How to convert a small speaker powered by USB into a small speaker powered by battery?
How to convert a small speaker powered by USB into a small speaker powered by battery?
It's time to sacrifice the speaker. Shorten the USB cable, and there will be two cables, which are powered by the battery of the mobile phone. If there are positive and negative poles, you can try to install them correctly. Now glue the wire to the battery, and it's done. But it is not recommended that you change it and buy a new one. You can get it on the battery car around 20 yuan.
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