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DWEII ZK-TB21 Bluetooth 5.0 Stereo Audio Receiver Amplifier Board 2.1Channel Mini Wireless Digital AUX Amp Module Bass and Treble Control for Home Passive Speakers Subwoofer TPA3116D2 50Wx2+100W : Electronics
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ZK-LT21 Bluetooth 5.1 Digital Power Amplifier Board Module 2.1 Channel 15WX2+30W with Subwoofer Audio Amplifier Board
ZK-AS21 220W*2+350W 2.1 Bluetooth Power Amplifier Board with TPA3255 Chip, 18V-36V Bluetooth Speaker Audio Amplifier Module : Electronics
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ZK-AS21 220W*2+350W 2.1 Bluetooth Power Amplifier Board with TPA3255 Chip, 18V-36V Bluetooth Speaker Audio Amplifier Module : Electronics
160WX2+220W 50WX2+100W ZK-HT21/ZK-TB21 2.1 Channel Bluetooth Digital Power Amplifier Module DC15-36V TPA3116D2 TDA7498E