Cell Phone Signal Booster Antenna for Verizon, AT&T, T-Mobile - Truck & Car Mount Passive Repeater for 5G, 4G LTE iPhones, Galaxies, Pixels

inside RV no cell phone signal, outside good, so bought this antenna to boost the signal inside, installed it as described, cell phone about 3ft away - still no signal inside, therefore this antenna is not working as described, have no improvement inside, just waisted money for nothing.

Doesn't work that well

It adds a bar if it’s in exactly the right spot but takes a lot to find that perfect spot

This thing is powered by hopes and dreams, aka it doesn’t work.My cubicle at work gets terrible reception, but the hallway just outside my door has just enough signal. I had hopes this could pick up and pass the signal across the glass of my cubicle wall. No improvement in any testable manner.It’s also not powered by anything. Not sure why that didn’t click with me when I purchased this.

This antenna added One and sometimes Two Bars to my phone reception so it did the trick for me perfectly. My problem was that my AT&T Cell Phone worked in every place of the house EXCEPT at my living room chair. People on the other end could not understand me - my voice was "robotic" and distorted when sitting at my chair - even though I could hear the other person fine. At the chair, I only had one bar whereas there were two and three bars all over the house and the communication was fine. So - I placed one part of the repeater outside the house on a window near my chair and placed the other part inside the house near the phone. A bar was added to the signal - sometimes two bars. Now my voice sounds normal and I can use the phone at that one spot in the house that was not usable before. FOR SURE - the antenna is NOT INTENDED for household use but I suspected it would help in this case and it did. My chair is located right where the electrical lines come to the house at the meter. My suspicion is that those wires created an interference for the phone and that has been overcome using this antenna. For the money - it was worth a try. And, it paid off for me.

Got this antenna to help boost cell signal while ride utv. It made no difference at all!

Please rename this product to zero boost; it does nothing to enhance the cell signal in the vehicle. I installed it in the back window with my cell phone one foot from the booster. One bar before and one bar after installation. Horrible. I'll be sending it back.

So, if you want to know exactly how well this works... I have a little 8' by 12' cabin out in the deep woods that gets absolutely no signal inside the cabin when the door is closed. However, just outside of the cabin on all directions there is just 2 bars on my phone. I placed this antenna exactly how directed in a window (high enough for the window to still open in the summertime) and now, when the door is closed, I consistantly get exactly 1 bar inside the cabin. For me, this is a real relief because it is enough make calls, receive calls, I even watch movies on my phone. I do not have electricity out at the cabin, so it was so nice to have such an affordable solultion that didn't require batteries or electricty. But you should know that it carries the signal in at one bar less than it is outside. It is not a booster. It's more like a bridge when you can't get a signal past a wall.