Review on 📶 Ultimate Cell Phone Signal Booster for Verizon AT&T T-Mobile 700MHz (Band 12 13 17) 4G Cellular Repeater LTE Mobile Phone Signal Amplifier Kit 70dB – Amplify Signals up to 4,000 Sq Ft Area (Home and Office) by Darryl Jennings

The booster worked perfectly and died one day. I emailed Anntlent, they asked for some readings from my phone to see that the range hadn't changed. This was difficult as the device was being used in a remote cabin so the round trip took weeks as I was doing some testing from the cockpit. mainly because tech support was on the other side of the world so we had a big difference in time zones, . As soon as I showed them that the group hadn't changed, they sent me a new one. Connected, working again, even better than the first time. They have certainly validated their product.