If one gets too far ahead, or wants to talk to us, we're not screaming their names to get their attention, The product says 1.9 to 3 miles

range is good up to 1 mile on flat field

They tested up to 1 mile in open area and 3/4 mile in city and still worked very well, planning to go further next time.

I don't think these will do 1.9 miles but work good

Says it works up to 3 miles, they failed at half a mile