Very happy with this product, purchased it to pull a little more cell signal into my husband's work office (he works in one of those 1950's cinder block buildings that blocks 98% of cell signal unless you're leaning out a window, haha - he had to go outside to make or take a call or text on his phone!). Now he doesn't even have to be beside the window, I can hear him clearly (maybe a *smidge* fuzzy, but tremendously improved over choppy or dropped calls). We're buying 2 more for his co-workers!