Audio Noise Common Ground Noise Isolation Board 3,5 mm AUX Noise Filter IsolatorS
9,24 €
Performance in the car stereo, there is a kind of audio interference, like whistling sound, the frequency of this noise, will change with the engine speed change. This product can only eliminate the noise and current sound due to common electricity and common ground products, and can not eliminate the noise caused by other reasons, so you need to personally confirm the source of noise.
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