The phone signal booster works great

This is NOT a FCC approved booster

Considered buying more expensive boosters from other manufacturers but decided to try this item from Phonetone

So a couple of basic things are at play here for the device to work properly:First, your cell phone provider MUST use on the frequency that the booster is trying to boost.

The booster worked well, increasing the cell signal from one bar to four

I think for us this booster has worked really well