We purchased this item for our Rock Texas Hill Country home. It works within a few of the interior rooms but as soon as we walk out the door it begins to get static and if we step off either the front or back porch it no longer gets reception.The base unit would not register batteries and after a long wait for tech support I found out that there is a known problem with Duracell batteries.We are returning the units and going back to the old portable phones which work much better at our home.