Eliminates annoying noise! Simple to use
925992
Simple to use - Eliminates the annoying hum and whine that I had when the phone was plugged in and getting charged at the same time.  Also works with a Bluetooth receiver that needed to power on
3372916
Our traditional doorbell quit working some time ago and we never figured out what was wrong with it. The way our house is laid out makes it difficult to hear someone knocking from the living room - well, from anywhere but the kitchen really. This doorbell solution was super simple to install - I removed the non-working doorbell button from the door frame outside, used the adhesive to stick this one over the hole where the old one was. I plugged in the receiver portion in the living room - a central area of our home - picked a chime and it works like a charm. So simple!!

I received this for free for my honest opinion based on my experience with this door bell.
4423231
If your MacBook headphone jack is giving you crackling noises, this is the way to fix it. I am a professional music arranger, and spend many hours using Finale notation software. This product saved me from an expensive repair to my Mac. It's a pain in the butt to have to use one of the 2 usb ports for this, BUT IT JUST WORKS! Don't spend $35+ dollars. If you just need clear sound, this is the way to go.
2997134
This little puppy did the trick!  For the past 2 or so years, my TV has had a fairly loud audio hum when hooked up to a Dish Network or DirecTV receiver with the component + red/white or yellow/red/white (analog) cables.  I was also getting strange horizontal lines that would pan vertically.  The only way I could get rid of everything was to move in my high def TV and hook it up with a digital HDMI cable, but that wasn't a permanent solution as the TV was kept in another room.

I had tried just about everything to remedy the problem... from plugging everything in the room to the same outlet to running new cables from the dish.  I was then told that my problem sounded like A/C hum.  So I did some research and came across this gadget.  Like several others have mentioned, I too was skeptical at first thinking that this couldn't solve my problem.  However, since I tried just about everything besides having an electrician come to my house, I thought I'd give this a try since other reviewers mentioned it fixed their similar problem (thanks by the way for everyone that posted those).

Here's some good usage info.  My first attempt at using the Hum X failed miserably.  I plugged it into the wall, plugged a power strip into it, and then plugged my TV and satellite receiver into the power strip.  HuMmMmMmmMM--it was still there!!!  So then I decided to unplug my computer and other gadgets that were connected to other outlets in the room, and to my surprise both the audio and video hums were gone!  I then thought... "Wait a minute, maybe if I unplug the Hum X now and just plug the TV and satellite receiver into the power strip and leave everything else in the room unplugged then all would be good."  But nope, still had the hum.  So I plugged the Hum X back into the wall and all was good again.  I then plugged all of my gadgets into the power strip connected to the Hum X and the hum was still gone.  Yay, great product EBTECH!

The Hum X seems pretty expensive to me; but since it works and has fixed a long-time irritating problem that nothing else seemed to fix, I am totally fine with paying $63 for it.
4798092
Significantly reduced interference on my tv speaker from my dishwasher and paper shredder (weird issue, I know!) Kept us from replacing the speaker bar!
4583733
Worked great. Eliminated humming and buzzing created by a PC connected to an audio mixer. Used three of these to isolate the six audio channels.
2164510
Difference in noise is obvious, and leaves no doubt this is an improvement.  If you have one of those crappy builder installed $13 vents, get this.  ESPECIALLY if you are in a two story house, and someone is above where this vent is located.  It moves more air, and is probably about 1/3 as noisy.  Very pleased.  Installation required a screwdriver, a small ladder to reach the vent, and about 10 minutes (only because I read the instructions).  Easy easy easy.
4031815
Excellent noise reduction and comfort- a nice combination - definitely better than super cheap ones!
3877704
For the price you can't beat it; certainly eliminates static and extra noise.  However, I only use the "minimum" setting, if you use the "maximum" you will tune out everything, even transitions.  The minimum setting does erase radio signals, but all in all it is worth the purchase.  I use it occasionally on my base unit when skip is extremely heavy.
944336
I bought a 32" Vizio TV and when I hooked up my DVD player I had a terrible hum. I had a similar situation many years ago with a projection TV and a VCR and a Ground Loop Isolator did the trick. Sooo, I bought this one and gave it a try - NO more hum! Easy and cheap fix for an annoying problem.  Ground loops occur when two devices are connected to each other but the design of one does not reference ground the same way that the other does. There are so many makes and models of AV equipment that no manufacturer can possibly test with each one so ground loops can and do occur. A GLI is handy device to solve the problem.
2933506
Love it!  No more yelling through the house!  Fits in with our modern decor and works awesome!
3859130
My car's sound system is new enough to accept external input, but not new enough to have built-in blue-tooth. I had been connecting my music source (smart phone or mp3 player) to the sound system via cable, but this was a pain and kind of messy.

This tiny, VERY INEXPENSIVE blue-tooth receiver let me get rid of the wire. It draws power from a USB jack (in my case from a car electrical receptacle adapter) and plugs into the car sound system's music input via a very short out-of-the-way cable. The installation is completely hidden in the car's console.

I connect to it via my phone's blue tooth and I'm totally in business! The sound quality is fine, and since it doesn't need to be moved once set-up I expect it to be reliable.
1503905
Had a macbook pro that always left a low-level hum in the speakers it was connected to no matter what I did. This little device finally kicked that nasty habit!

No noticeable degradation in sound quality whatsoever, and only a slight reduction in volume.
4258201
I had choppy recording in a Sound Blaster and the onboard sound, so I installed this M-Audio US41750.  The sound is now clear and not choppy at all.  This also seems to have solved a ground-loop problem which was resulting in hums in my other recordings.
1480846
Purchased this device and it fixed the winding noise in my speakers immediately. All I did was plug it in between the RCA cables from my head unit and my amp. The noise was instantly gone and I didn't use the two brown wires attached to the device.
4452916
I was using cables with too many adapters.  Each adapter had the potential of adding to the noise in the mix. This one eliminated the various adapters and works nicely.  No discernible noise from the cables.
4803980
Easy to use.  So quiet you don't even know it's working!!