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Amazon.com: Dayton Audio KAB-23 aptX HD Bluetooth 5.0 Receiver Audio Amplifier Board 2 x 3W 5 to 21 VDC : Electronics
Amazon.com: 1Mii Bluetooth Digital Amplifier, Bluetooth 5.0 Stereo Audio Amplifier Receiver Long Range 2.1 Channel Mini Hi-Fi Bluetooth Amp for Home Speakers, Bass & Treble Control : Electronics
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