The range is awesome ..
When I had the radio with my parents, both were turned on the dining room table.
Suddenly they heard a child's voice. I took the radio and asked who to be there.
It was one of the village children of us who played with his radio in his room.
He lived at the other end of the village. Bee-line 5 km away ..
So the range of the hammer, even in enclosed spaces ..
Thanks to Funkis I now have my Walkietalkie- friend, the 4 year old Lennard ... =)