| Brand | Unbranded |
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Check the listing for details. Dual 12 Stereo Level Indicator Adjustable Light Speed Level Meter Board Module. Condition: New. Listed at 15.70 USD. The signal input is isolated by the op amp to avoid single-chip high-frequency interference AUDIO. The signal input is isolated by the op amp to prevent the high frequency interference of the MCU from being inserted into the audio.
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