I use a Verizon Pantech UML290
I live in Az. surrounded by mountains. The closest tower is 5 miles, but can not connect from it. The next Tower is at least 20 miles. That's the one I connect to with 5 bars [-75dbm] all the time. Before the antenna I would have 1-2 bars, 3 on a good day. I am very happy. Thank you!