Usually the distance range stated on the package is not that accurate, but we have 94 acres, some wooded, and our little walkies work fine out here. If one of us had an accident far from the house, these could be a lifesaver. Or if i just wanted to call him in for lunch.😊

I would test them all around your property, so you know for sure.

Baofeng UV5Rs are a cheap solution ($20-$25 each). They can be unlocked to use frequencies outside of the ham radio bands, like GMRS and MURS. They work as a scanner for analog emergency frequencies too.