Our review:Item Description:The Wi-Ex zBoost cell zone signal booster is a revolutionary, patent-pending new product that improves indoor cell phone coverage. zBoost captures the wireless signal outside, brings it inside and enhances, or boosts it - extending a cell zone in your home or office or your car.
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Buyer Testimonials
Average Buyer's Review:
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Exactly as expected
This will extend your wireless coverage by rebroadcasting the signal in an unreached area. The only reason I gave this product 4 stars and not five is the installation is not straight forward plug & play. It does take some finesse & finagling. A reminder that this is an extender and not a creator. It cannot extend what you do not have. I recommend this product.
Buyer's review: 
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This item performs poorly
I'm and electrical engineer. I followed the installation instructions carefully using only the included equipment. And I was careful to get adequate separation between the unit and the external antenna. Even the diagnostics on the unit itself indicate that it should be a good installation. But the unit only works off and on with the result that calls fade in and out - even if you aren't moving around the house. It happens if you are sitting right next to the unit. The call quality ends up not being improved.
I called customer service while trying to debug it and they told me that that you can't tell anything from the flashing lights on the front of the unit. That flashing or not flashing was all normal. From this I concluded that all of their units have problems and only work intermittently.
I may have a faulty unit, but I just wouldn't recommend this item. It is a lot of money and doesn't very well.
Buyer's review: 
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Does the job!
We have a small 4 person office.. Few if any calls have been received on our cell phones.. We placed the antenna on the peak of the outside roof and installed the inside part on a wall above the front door (inside).. So far everybody's cell phone works fine! No dropped calls or calls failed..
I advise purchasing this product if you have a signal outside the building..
Jim Miller
Buyer's review: -
A signal 20 feet underground
I was very impressed by this Cell Phone Booster. I live in an underground, concrete dome home. Getting a cell phone signal in the house was all but impossible unless I stood outside on the porch or by a front window. With this wireless booster, I know have a signal through all 5000 square feet. It isn't an overwhelmingly strong signal throughout the house, but it works. I don't need 5 bars to make a call. Just one will do. And you live in a place that doesn't get even get that, you appreciate every bit of signal you can get.
I used an existing cable that ran from the interior of the house to the "roof". Our roof is about 10-15" feet deep of earth. On the roof I planted a six foot tall post, zip-tied the antenna and cable to it and went back into the house. Attached the other end of the cable to the booster, turned it on, and I had a signal inside a concrete and steel structure 20 feet underground. Very cool!
I highly recommend this booster.
Buyer's review: 
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Having trouble with this product.
I purchased this product because the cell phone reception in my house is horrible. Before I bought the product I climbed on the roof and verified that I had three bars and good call clarity. I fist tried mounting the antenna the peak of the roof line with the base unit in the basement. Didn't seems to work too well. My coax ran within 4" and perpendicular to a 110V power line, so I repositioned the coax to emlimante this interference with no improvement, sometimes I would get a little better signal but not really a usable signal. So I went out and bought an antenna mount with a 10 foot mast and mounted the antenna at the peak of the roof, I placed the base station in the basement on the floor. This is as much vertical seperation as I can legally have as I am limited in antenna height, this is at least 25 feet of vertical seperation. I still cannot figure out the blinking lights on the base unit after reading the manual several times as they all blink in various patterns pretty much constantly. I don't think there is anything else I can do to improve the installation per the instructions. Now sometimes I get pretty good reception standing by the base unit (3 bars) and about 2 bars on my main floor but other times the system does not appear to be functioning at all. The system seems to be really flakey in the fact that it works sometimes okay but other time not really at all. I have to say I am dissapointed because I spent allot of time trying to get the system installed correctly with poor results and the unit was very expensive without good results, I pretty much feel like I wasted $300.