I'm on my 3rd lab right now, I have a 9-year-old and an almost 2-year-old. Both dogs are trained to return/recall with the tone function on their e-collars. If they are on scent they will run as far as I will let them, but if they get further than 30-35 yds, I recall them, and they can pick the scent back up once they have returned. Both dogs hunt relatively close in the 10–20-yard range. I will say that my young dog really enjoys trying to stretch that distance and this past weekend on the last day in IA she realized that dad's transmitter battery was dead, and wow did she run, I had to result back to the whistle which she isn't accustomed to, so it made for a challenging first field!