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Amazon.com: ZK-502A 2.0 Bluetooth 5.0 Amplifier Board 50W*50W with APP Control(Android Only),100W Bluetooth Audio AMP Board for DIY Bluetooth Speaker Kit DC9-24V,Black (ZK-502A) : Electronics
Wireless Bluetooth Audio Stereo Module APP Controller BLE5.0 50W+50W USB/AUX/PC Digital Amplifier Module
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