Smof 【𝐔𝐩𝐠𝐫𝐚𝐝𝐞𝐝 Ground Loop Noise Isolator for Car Audio/Home Stereo System (Eliminate The Buzzing Noise Completely) with 3.5mm Audio Cable, Audio Isolation Transformer -1 Pack

Really thought this would be a waste of time and money, but it really took me by surprise. I built a new gaming PC and it had a horrible GPU coil whine coming through my HS8 studio monitors. I connected them to this little gadget, and to my genuine surprise the noise stopped. Easy to use, does exactly what it says on the "box". What more can I say.

We do not have bluetooth on our car radios and when we go on long journeys we have to charge the phone we are using as a Sat-Nav while we are travelling, we us the AUX port on the radio to listen to the instructions witch is fine all the time you are not charging the phone as well, because as soon as you do we get lots of hissing, cracking & humming which is caused because the radio & the Phone are being charged by the the same source. using this Amazing Little Gadget stops all that noise but does not seem to cut out the volume at all which is brilliant I can even listen to my music and the Sat-Nav at the same time now Very pleased with our purchase.

Bought for a PS5 to remove static noise from line in on PC so I can have sound from my PC and PS5 at same time. This has removed a lot of the noise but sadly not all. There's still a high pitch sound coming through, almost like ears ringing, I actually thought my ears were ringing at first. Still much better than without and for the price point, can't complain.

It works

I was honestly surprised by this little thingy.I was having noise issues between my keyboard and kaoss pad. This little Smof filter was cheap so I went for it. It entirely removed the buzzing, even at high volume.This works way better than it has any right to at the price. It honestly couldn't work any better. It completely got rid of all the noise I was getting.I'm not claiming it will work for any situation, but it works perfect for my setup (keyboard, kaossilator, kaoss pad and speakers all on the same plug extension)

Having had a hum from cables plugged into the Aux In stereo 3.5mm TRS jack of my Audio Pro C10, i bought this... but the noise didn't go away (literally no change)... and the cables are good. I swapped the connection to the stereo RCA input and the noise disappeared so I don't need this now.

Oiiii! I'm sceptical by nature. I read reviews but never fully believe them.I had to write this one because i am honestly blown away how good this lil thing is!!Had a loud hissing sound from one of my Rocket powered speakers when connected to my TV. I thought it was the quality of the cables i used. I bought x2 different RCA cables, tried XLR to RCA. Blamed my Tv. Came across this, and thought i don't mind wasting £8 for another nonsense thing that won't work.I put this thing in and SILENCE!! I was very very surprised. A very happy man!!

Got this to use in my car, having an older cat I bought a cheap android system to sit on the dash and plug in via the Aux socket, soon noticed a whine from the speakers from the a alternator. So I bought this and hey presto it worked no whine, but whilst eliminating the whine it also capped the bass so all the heavy sounds make it Seem like your speakers have blown. It will be returned and I will try to find a better item.