ZK-MT21 Bluetooth 5.0 Subwoofer Amplifier Board ($12.74)

We thought this price was a typo. It’s not: $12.74 (Banggood). Updated: 22-02-2026.

ZK-MT21 bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Tone Board Bass AMP AUX
Banggood warehouse: China.

Price: $12.74

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Price records source(s): Banggood
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