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ZK-TB21 2.1 Bluetooth digital power amplifier module with adjustable bass and treble. Low bass speaker. TPA3116D2 original chip.

  • ZK-TB21 TPA3116D2 Original Chip
  • ZK-MT21 Power Amplifier Board
  • ZK-TB21 2.1 Bluetooth digital power amplifier module with adjustable bass and treble. Low bass speaker. TPA3116D2 original chip.
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ZK-TB21 2.1 Bluetooth digital power amplifier module with adjustable bass and treble. Low bass speaker. TPA3116D2 original chip.

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