Media & Music · United States

Bluetooth digital power amplifier board 2.1 channel 100W + 100W + 200W subwoofer chip TPA3221 ZK-ST21

Lowest price: $35.28 · 1 store · price range $40.09 … $40.09 · 12% off the list price

Price history: 2 daily prices tracked since 2026-10-30; lowest $35.28, highest $35.28.

Price last confirmed by the store feed on 2026-10-30.

Prices across stores

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