7.4V Amplifier Board Square Dance 30W Speaker Amplifier Support Bluetooth AUX U-Disk Recording 5-8Inch Speaker Home Theater DIY

  1. It must be connected to a 7.4V lithium battery to turn on-this is very good for booting. 2. Batteries are not included due to national delivery regulations. 3. The positive and negative poles of the battery must be connected according to this diagram, otherwise the board will be burned
NUSAP MALLL

NUSAP MALLL

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