BESIGNGround Loop Noise Isolator for Car Audio/Home Stereo System with 3.5mm Audio Cable

My GTi is old - it's model year seems to have been the last one prior to the widespread introduction of usb ports as a standard piece of kit for new cars by VW. It has several buttons for satellite radio and a DVD-based navigation system. Bluetooth audio was moving from a rumor to reality but still a few years from being available as a feature. So no easy wireless audio existed for me in this car - only an aftermarked aux jack that I had been plugging into via Apple's Lightning to 3.5mm adapter. I tried using a Bluetooth dongle, which brought brief joy followed by the realization that it would need frequent charging, which invariably brought on the eerie, disembodied, hissing menace of the Audio Ground Loop. Efffff.BUT - I love my GTi; it's paid off, cheap to insure, and driving it still puts a smile on my face. Two weeks ago I did a bit of research on reliable isolation devices, got overwhelmed by the crushing weight of paid-for, AI-faked, ludicrously off-topic, and real reviews, and decided to just buy the most popular one on the big A.Thing works great. No degradation in quality (to my somewhat practiced ears), nor any decrease in volume. Just plugged my bluetooth receiver dongle into the cigarette lighter outlet/usb charger, connected this thing's built-in 3.5mm male cord to the dongle's output, then ran a short 3,5mm cord from this isolator to the aux jack. Voilà. Now that setup sits, out of eyesight, in the emergency-brake-lever area to the right of the driver. When I start the car, on comes the bluetooth. With this isolator in place, I have seamless, interference-free bluetooth audio from my iphone without ever having to plug the phone in to anything. Wonderful. Writing this review was harder than setting it all up.

My laptop is currently connected to a decent set of Klipsch speakers that have analog inputs. Both this laptop and prior laptops when connected would exhibit a fair amount of cross talk from their headphone out ports. Adding an external sound card did not fix the issue either (to my surprise). However when I added the noise filter the hisses and pops disappeared immediately with no degradation to the sound quality at all. I wish I had made this purchase years ago as I can now use the laptop to listen to audio the same as my desktop on my external speakers with no issues now. Thank you for a great product!!

I play drums and use a kind of complicated setup for my monitor rig on stage. I use an iPad for a metronome while I'm playing and connect the monitoring mix from a Behringer P16. I connected them with a tiny stereo mixer to my headphones. I ran into a problem with a buzz coming from the iPad signal. I tried some different power supplies and different cables to fix the problem, but they didn't work. I plugged this in and the problem was solved instantly.I've only used it on a few gigs, but it does exactly what I expected it to do resolving my noise issue with ease. I would definitely recommend this for someone with a similar issue.

I bought this hoping it would remove the static from my aux connection in my vehicle radio.. I have terrible static feedback when an auxiliary cord is connected from my phone to the radio regardless if I have a charger connected to my phone or not. This works. I was looking for FM transmitters because I thought my radio was just done for. I don't need to look anymore, this solved my problem. No more static

Didn’t eliminate the problem entirely but it helped. Good value for the money.

Had some crazy hissing noise after installing an amp and did everything to try and get the noise out. I grounded everything together and to the frame, put both units on the same positive circuit but nothing worked. Did a quick google search and thought this ground loop could be the solution but wasn’t holding my breath. Bought this one here and it completely solved the issue. I was very surprised and happy at the same time.

I was having a problem with a low volume hum in my computer speakers. It was especially bad whenever I used my mouse. I ordered the BESIGN Ground Loop Noise Isolator & received it the next day. Installed it inline and problem solved!

I wanted to pipe my Switch 2 audio into my PC line-in so that I could use my headphones with both the PC and Switch at the same time but it had a noticeable humming noise. This was cheap and now it sounds exactly like it should.