ZK-TB21 High Power 2.1 Channel Bluetooth Digital Amplifier Board 50WX2

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Zk-mt21 2.1 Channel Digital Amplifier Board Module High And Low Tone, Hifi Sound Quality, High Fidelity, Hd Sound Quality, Subwoofer And Left And Right Channel Output, Aux+ Audio Input

Fosi Audio TB21 Bluetooth Sound Power Amplifier Board 2.1 Channel Mini Wireless Digital Amp Module 50W X2 100W Subwoofer 211011 From Jiao10, $25.76

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