This device does exactly what it states. It completely removed buzzing / whining noise in my saab 9-3. I recommend this product, great quality also.
Verified purchase: Yes | Condition: New
I have a really annoying mains hum when I connect my laptop to a set of powered speakers. I use the set up for Zoom meetings. When I unplug the laptop and run in batteries there is no hum. This device claims to eliminate mains hum for exactly this scenario. However there is absolutely no difference if I use the device or plug the speakers directly into the laptop. Waste of money unfortunately. Also if I move the attached cables when it is plugged in I get crackling noises indicating that something is not quite right in the wiring.
Verified purchase: Yes | Condition: New
Simple and works brilliantly. If you have ever played lap-top through a PA system and wondered why it is all crackles and noise, this is for you. Amazing difference, signal as clear as day and no background noise. Well pleased.
Verified purchase: Yes | Condition: New
Does the job - reduced the ground loop hum I was suffering from to next to nothing.
Verified purchase: Yes | Condition: New
Really good piece of kit, it as put an end to my Earthing problem. All good.
Verified purchase: Yes | Condition: New
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