Range is limited, cannot be extended
584838
Buyer beware: If after pairing you find that the switch is out of range, go ahead and return it. I purchased the GE 12719 and even with their own products, could not extend the signal from inside an exterior wall to the outdoor plug.
4016498
Extremely poor range. I couldn't even get past the installation wizard because it requires you to find a nearby outlet that receives a minimum number of coverage "bars". I plugged it into the room right next to my wireless router and it still couldn't get enough bars to pass the coverage check. My unit was a refurb, so there's the chance that it was just defective, but I won't be purchasing another.
2607528
I purchased the receiver (collar) and the transmitter, replaced the batteries in both, and still only managed to get a range of about 4ft which was not adequate for our needs. We also moved the transmitter all over the room to try to get better reception and also had the range up to the maximum level. Still no Bueno.
1297508
Has no range at all. Works well if you are within 10 feet of the router but get more than 15 away and it cannot pick up the signal. Another PC works well with the router at 75 feet.
1702428
Easy to setup and connect devices, but the advertised 30ft range is a joke.  I have an unobstructed view of this thing and can't get further than about 8ft away without the connection turning to garbage.
2800033
The design of the product presents problems for extending range. First the power is a 90 degree plug that limits choices for placement of the unit or using in conjunction with other items. This choice also increases real estate for what would otherwise be a relatively compact unit. Battery is not an option. Second it did not play well with other toys. You need the cooperation of this unit, the router or access point, and your connecting item simultaneously and continuously to have a happy wireless experience. Your mileage may vary but I could not get that too often.

It was not worth the hastle for me for what little range extension was taking place.
1964806
Does not work on high building due to the remote limitation.  Can't link multiple together
2789003
I just received this item as a gift, and really enjoy the features and accuracy.  However, I am severely disappointed in the transmitting range.  My smoker is located in my backyard next along a wooden fence.  I have an acre lot with no trees, and no nearby obstructions of any kind.  There is nothing but an open field behind my fence and nothing but grass between the location of my smoker and the back of my house.  The receiver loses connection to the transmitter at a distance of about 75 feet (about half way between my house and smoker) with nothing but a direct wide open line of site between.  I purchased longer (6') probes to move the transmitter farther from the smoker and hung it on the fence to elevate it somewhat,  That made absolutely no difference.  If I could get the range to work at 175 feet I'd be ecstatic and would gladly offer 5 stars.  Are there any good practices for extending the operating range of receiver transmitter connection.
4691050
It was pretty easy to set-up for Windows 10, and I was up and running within a few minutes.  The menu is intuitive and easy to navigate.  However, I bought this unit for the claimed 100-meter range and I get no way near that.  I'm lucky if it reaches 10ft.
505376
Range is not that great, have paper thin walls in my house and it still has low signal. ~30 feet away smart tv cant get 5G.
850552
The range extender doesn't offer the better connectivity expected, and sometimes jams with power outages, which we often have. Had to buy another modem, which is more powerful to extend the range, without using the range extender.
3221344
Like everyone else says, it looks good but range is limited. If I had to buy it again, I am hard pressed to... It's hard to recommend this product.
2720957
We needed extra range for our seasonal Christmas Tree sales booth, so we could use the iPad to process credit card sales.  Its at least 400 feet from our home modem, and the signal from the house was not strong enough.  I used the web interface to set it up, apply a password, etc.  Works very well at that disance, and Amazingly it works well even in the below freezing temperatures.
4320121
I had high hopes for this product. Unfortunately it only worked for 10 minutes. It lists that the range of 66 feet yet I stood 12 inches away and it would not turn it off. I am returning it for a full refund.
1960793
the unit does not effectively extend the range of the cellular signal.  the unit was easy to install, but that's the only positive statement i can make.
3298955
Works ok, but the range is only 30ft  I use it for my office and the speaker must be very close to it, otherwise it loses the connection.
Just keep the speaker close by, or use it for other blue tooth devices.
77546
Pairing is elegant with a courteous confirmation tone.  Sound quality via AAC is excellent.  However, the range is terribly limited.  It probably works a long time if the phone is sitting inches away.  But, for my purposes, I was looking for something to use in my home gym.  I soon realized that it has a max range of about 20'.  When body mass blocks the signal, such as when laying on floor with knees up, that range diminishes to about 3'.  Also, because I am using both bluetooth and wifi at the same time, battery life is affected.  I think I will return this and get an older Airplay with an analog out.

Update: Apparently, my drop-out issue is about more than just range.  I am currently experiencing the same one-or-two-song playback before the thing stops.  The bluetooth menu on my iPhone still says it's connected.  The blue light on the unit remains steady, just no music!  I tried finding a firmware update on the Xtrememac website but no luck.  Will be returning it.  Also, no option for AC power.  As a matter of convenience, I like something I can plug into a switched receptacle so that I can just flip one switch to turn everything on.  For audiophiles, I would highly recommend an Apple TV.  It has the range of wifi and plays back at up to true uncompressed WAV quality straight off Apple devices, outputting up to 48 kHz via optical.  I use this on my good system and it is so good it makes me drool.  But it costs $100 and does not support bluetooth.  For the gym, I want bluetooth so users of other brand phones can use it if they want.