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

DOES NOT WORK AT ALL. I drive around in a truck on a commercial solar field where the service is poor to begin with. While inside the truck, my phone practically has zero service (SOS mode only), but cracking the window and holding my phone out instantly gets me a real signal.I bought this and mounted it on the windshield just above the steering wheel hoping it would function the same way without having to hold my phone out the window.Real cell boosters cost hundreds of dollars, so for the price I figured it was worth a shot especially given my very specifically tested situation. Unfortunately though it is complete garbage. Don’t waste your money.

Product has strong double sided tape easy to put but the only this is it didn’t catch any signal my signal still poor..

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

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.

Works as intended, transfers 4g lte cell signal through the roof of my van in an area where service is very poor. In my area, holding a phone up high with your hand would improve signal.

Don't buy - doesn't work.Product does not work but actually makes the signal much worse in vehicles. We tried testing this for a week, and found out finally why our signal was so bad. I can't find the packaging so I guess I'm out the money.Update: received message saying that the item does not have to be returned in packaging. That response was good.

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.

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.