Fair enough. I don't have any first hand experience to offer. But I think I read a test of baby monitors in some consumer magazine a while back. As far as I remember few of them were good. Maybe you got one of the several bad models. My friends have some audio only monitors. They fail safe, you immediately hear static noise once the connection gets interrupted. But yeah, they only transmit a few hundred meters because it's radio signals. It's not like an IP cam where you can watch your baby from another continent.