collars

Anyone have any experience with them? I have always had Dogtra collars (ok, only two). Reason I am asking it I can get one at a significant discout at work, and I need to get a 2 dog unit. Thanks RJ

Hi, I am getting ready to purchase a collar for my dog and am leaning toward the TT line. Just wondering if I need a mile or is the 1/2 mile sufficient. I plan to hunt waterfowl and upland and try the Hunt Tests but not likely the FT series other than some local club training. Are those who use...