Bluetooth 5.0 Amplifier Board With Optical Audio AMP USB FM Radio TF Player DIY Audio Subwoofer For karaoke Home Car 110V/220V

I was hoping the Bluetooth aspect might be the output direction instead of input and a slim chance that it might be stereo. I really am not sure because there are no instructions with the package or anywhere online as far as I can tell. I don't understand why anyone today would sell an amplifier that has only mono output. Oh well, it only cost me about $10, so I won't need to move into the poor house.

The amplifier works well, and I was able to use it to repair a faulty Polk subwoofer. My only complaint is there is an incredibly loud voice that says "Bluetooth available for pairing", or something like that. I have mine connected to a smart wifi plug, so I just power it on from a different room so it doesn't seem as loud. The audio quality is pretty good for the price, but the speaker you use matters obviously.

It's not stereo

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Exactly as described. Fast shipping from this seller. ⭐⭐⭐⭐⭐

Super product, great equalizer. I was able to revive a Sharp SB 60, but unfortunately Bluetooth 5 does not communicate with Bluetooth 2.1.

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