3.5mm AUX Noise Filter Isolator Car Audio Navigation GPS Current Sound Filter
4,75 €
Input and output are 3.5 headphone jack, custom input and output can be. 2, isolator ends for 3.5mm AUX socket, can be directly inserted into the 3.5mm audio plug. 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.
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