Intercom Central® GROUND wire Power-line 3 CHANNELS Intercom System, Black Two Stations Set.

System works as described, easy to set up, there are three channels, but only two units come in the box, not three as pictured and as in the description.

Worked right out of the box for us. We decided on Intercom Central based on price and mostly good reviews. We don't have a huge house, but it's too far to yell from one end to the other. We put one unit in the master bedroom, one in the kitchen, and one in the office at the far end of the house. This is really nice. No more yelling or going from room to room to communicate. We are thinking of buying an additional set so we can put one in the garage and one in the shop. I wish we would have had these years ago. Some of the reviews mentioned a buzzing or humming. We did notice that, but it is not bad. It might be annoying if you used these as a monitor and had it on transmit all the time. We only used them as intercoms, so we hardly notice the hum. Compared to similar intercoms this one is a bargain!

The units are installed in a house and a detached shop -- on the same electrical service. The voice audio is excellent. The CALL function is very helpful. When setting the first two units up, they worked very well. When the third was added, the system no longer worked -- even if the third unit was not turned on! After much experimentation, it was discovered that when a device with an instant on function (a TV), even when turned off, was plugged into the same outlet as an intercom, the system didn't work properly. When the TV was plugged into another outlet, the system worked fine. The "other" outlet is on the same branch circuit. Electrically, there is no reason why moving the TV to another outlet on the same circuit allowed the intercoms to work, but that's what happened.

I bought these to replace a wireless system between the house and the garage. They do not work between buildings, even though everything is on the same meter. They work fine plugged into the same outlet, as a test. But the further you get apart, the poorer these work. I think there is too much interference in a modern home with GFIs and surge suppressors. Save your money, and buy a wireless system.

Intercom works fine, BUT this was the second order. The first time one of the units was defective. While that unit was returned without problem, the customers should not be the ones to do quality control. Also, if the customer has to return the item, in my case having to locate and drive to a UPS store, then the company has gotten an hour of my time for free, so from my perspective the item was appreciably more expensive than the list price.

We use these to communicate between three rooms in our two-story house, and they work fine. We simply plugged them in the nearest outlet to where we wanted them located, and they worked. So very simple, plug-and-play wise.The sound quality is fairly old-school intercom/speaker-phone (be prepared for walkie-talkie acoustics) but we can hear each other well enough. It's nice not to have to scream up the stairs now, so it's exactly what we were looking for.Not the greatest intercom system ever invented, but it was easy to set up, and it works.

We'd used other power-line intercoms, but they failed because our house is split into two circuits, and they couldn't communicate across them. This unit doesn't have that problem.That said, you -must- have properly grounded outlets for this intercom to work. I found out the hard way; our bedroom had three-prong outlets, but the intercom wouldn't work there until I installed an adapter ($0.89 at Home Depot) to properly ground them. With that fixed, the intercoms work very well.I also discovered that it wouldn't work when plugged into a fancy Belkin "noise suppressor" power strip. Apparently the Belkin outlet suppressed the intercom's signal as well as "noise". So try plugging it directly into the wall if you have reception issues.I have two minor complaints:- I wish there was a way to disable or remove the multiple channel feature. In most households you really just need one channel, and it's annoying to have it stop working if the channel setting is accidentally changed.- The "on" indicator uses a really bright white LED. This is fine during the day, but it's annoying to have a bright light on your bedside table at night.

Product seems of good quality, but wouldn't work for me. We have a one-story, 3 BR home built in the late '90's. According to the documentation with the intercoms, every home has two electrical feeds, with circuits branching off of each. Only outlets connected to the same major feed will be able to communicate. After I received the intercoms I plugged them into different outlets and found that one feed connects the garage, basement and kitchen. The other feed services the LR and bedrooms. I wanted to connect the basement to the kitchen and one of the bedrooms. Basement to kitchen worked fine (same feed), but not basement to bedroom. It's not the product's fault. But, to save yourself the trouble of waiting for the product and then having to send it back, use a circuit tester, available inexpensively from a home improvement store, and ensure that the two outlets you want to "talk" to each other will be able to.