At first I was skeptical at the opening of the product. How such a small product (roughly the size of a matchbox long version) can strengthen a signal? Well yes, connected to about 10 m of the original signal, reception through walls 4, 60% received signal and broadcast all around for a distance of approximately 20 meters in depth, noticeable to about 40 meters, which allows me to cover all of the sudden my garden :-) :-) :-). In addition to this, a very simple, updating the firmware configuration simple and effective, that's good what !!! Product advise without hesitation !!!!