HiFi 4 Channel Bluetooth 5.0 Digital Amplifier Home /Car /Marine Amp USB Player

U-disk/SD/MMC supported formats: MP3 / APE / FLAC / WMA /WAV. Audio input: Bluetooth / USB(U-disk) / stereo RCA / 3.5mm AUX / SD & MMC Card. Bluetooth version:5.0. And specailly design a low frequency output to connect active subwoofer, very convenient to build 2.0/2.1/4.0/4.1 channel system.

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