ZK-ST21 Bluetooth digital amplifier board 2.1 channel 100W+100W+200W subwoofer chip TPA3221 DC12-30V 10A

👍: 100.0%

ZK-ST21 Bluetooth Power Amplifier Board 2.1Channel 100W+100W+200W Subwoofer TPA3221 Digital Power Amplifier Module, Durable

👍: 100.0%

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