ZK-502H ZK-502M ZK-1002M 50WX2 100WX2 Mini 2.0 Stereo Bluetooth 5.0 Digital Power Amplifier Board Audio AMP Amplificador Module. 1002M MINI 1 / 502H HIFI 1 / 502M MINI 1. Audio input: Bluetooth + AUX + U disk + computer USB sound card (plug and play).
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