Simple and remarkable efficiency, at low prices.

It seems that all buyers of this product are all stunned by the performance of this detector / chime and there was what. It's a small wonder, given that almost all of these wireless products do in fact work only over very short distances, even without walls or foliage and this, regardless of the budget that is spent there . This "wireless" - there it goes everywhere, in my case it is not embarrassed by the portal or aluminum, or by stone walls (about 70 cm) nor by good distances. All plastic, these devices do not pay for mine, but it is certainly the best that we can find in the market. To buy without worry. And thank you to those who, by sharing their satisfaction, allowed me to discover a "wireless" that works. Finally!