Professional Mono Common Ground Audio Isolator Acoustic Noise Filtering to Current Sound Balancing Adapter

There is noise when the notebook is connected to the mixer when using the external power supply, and there is no noise when the power is unplugged and only the built-in battery is used.
When the computer is connected to the mixer, there be noise at a distance, but there be no noise at close distance, and so on.
The computer connects VGA video and audio to the home projector at the same time, the noise occurs, the VGA cable is unplugged, and there is no noise.
The computer is connected to the mixer, the battery is normal, and there is a noise when connected to the power adapter.
Computer connected to the mixer, the two are close to normal, far from the noise, the replacement of the audio cable has been improved, the use of audio separator-separator, completely solved!
When car Bluetooth is connected with AUX, it is powered by lighter at the same time, there is current sound when playing concert, but there is no noise when Bluetooth is powered by mobile power supply, so this isolation can be solved at
Color: Black
Material: plastic

Package Contents:
1 x Audio Isolator

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.