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Looking for something like "facmogu-ak280-200w-200w-mini-2-0-ch-audio-power-amplifier-2-0-ch-receiver-speaker-amp-with-12v-5a-power-supply-bass-and-treble-control-music-player"? Here are the closest matches:

200W Bluetooth 5.0 Stereo Power Audio Amplifier Board with Treble and Bass Control 2.0 Channel Mini Wireless High Power Digital Amp